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Gene drive for Malaria control | Andrea Crisanti | TEDxWarwick


we share this planet with about a

we share this planet with about a million of animal species we all know

million of animal species we all know

million of animal species we all know that some are dangerous the big the

that some are dangerous the big the

that some are dangerous the big the aggressive they can attack and kill ants

aggressive they can attack and kill ants

aggressive they can attack and kill ants but it is less common knowledge that a

but it is less common knowledge that a

but it is less common knowledge that a small group of tiny mosquito and the

small group of tiny mosquito and the

small group of tiny mosquito and the most dangerous animal on earth they

most dangerous animal on earth they

most dangerous animal on earth they transmit a number of severe and

transmit a number of severe and

transmit a number of severe and life-threatening disease this is include

life-threatening disease this is include

life-threatening disease this is include malaria yellow fever dengue and Zika

malaria yellow fever dengue and Zika

malaria yellow fever dengue and Zika this to give you an idea about the scale

this to give you an idea about the scale

this to give you an idea about the scale of the problem this mosquito transmitted

of the problem this mosquito transmitted

of the problem this mosquito transmitted about 300 million cases of disease every

about 300 million cases of disease every

about 300 million cases of disease every year it account for 3 million deaths

year it account for 3 million deaths

year it account for 3 million deaths every year

every year

every year malaria alone kills half a million

malaria alone kills half a million

malaria alone kills half a million children every year under the age of

children every year under the age of

children every year under the age of five so today I will tell you how

five so today I will tell you how

five so today I will tell you how manipulating the law of heredity it’s

manipulating the law of heredity it’s

manipulating the law of heredity it’s possible to develop a technology to

possible to develop a technology to

possible to develop a technology to spread a genetic modification design to

spread a genetic modification design to

spread a genetic modification design to block transmission of disease in the

block transmission of disease in the

block transmission of disease in the mosquito in other word make this

mosquito in other word make this

mosquito in other word make this mosquito immune from a small laboratory

mosquito immune from a small laboratory

mosquito immune from a small laboratory mosquito to an entire large population

mosquito to an entire large population

mosquito to an entire large population now this technology can change the

now this technology can change the

now this technology can change the history of vector control I want to

history of vector control I want to

history of vector control I want to start with something that we are all

start with something that we are all

start with something that we are all familiar with every object breaks wear

familiar with every object breaks wear

familiar with every object breaks wear out get damaged when I was a child every

out get damaged when I was a child every

out get damaged when I was a child every time I was given a toy wander was soon

time I was given a toy wander was soon

time I was given a toy wander was soon replaced by curiosity I really want to

replaced by curiosity I really want to

replaced by curiosity I really want to find out how it worked invariably I open

find out how it worked invariably I open

find out how it worked invariably I open it I disassembled it and it was a very

it I disassembled it and it was a very

it I disassembled it and it was a very rewarding experience but frustrating at

rewarding experience but frustrating at

rewarding experience but frustrating at the same time because the object the toy

the same time because the object the toy

the same time because the object the toy very often got broken in the process and

very often got broken in the process and

very often got broken in the process and this takes me to another thing that we

this takes me to another thing that we

this takes me to another thing that we all learned the process the least damage

all learned the process the least damage

all learned the process the least damage is irreversible toy don’t get fixed by

is irreversible toy don’t get fixed by

is irreversible toy don’t get fixed by themselves and this is true for every

themselves and this is true for every

themselves and this is true for every objects around us when I studied

objects around us when I studied

objects around us when I studied medicine

medicine

medicine I also learned another thing their DNA

I also learned another thing their DNA

I also learned another thing their DNA is not immune to this process like any

is not immune to this process like any

is not immune to this process like any other objects DNA gets damaged breaks

other objects DNA gets damaged breaks

other objects DNA gets damaged breaks into piece DNA is continuously damaged

into piece DNA is continuously damaged

into piece DNA is continuously damaged by radiation by chemical compounds and

by radiation by chemical compounds and

by radiation by chemical compounds and by viruses well the good news is that

by viruses well the good news is that

by viruses well the good news is that unlike toys living living in cells have

unlike toys living living in cells have

unlike toys living living in cells have developed from all organism I have

developed from all organism I have

developed from all organism I have developed the ability to repair the DNA

developed the ability to repair the DNA

developed the ability to repair the DNA and this happens mainly through two

and this happens mainly through two

and this happens mainly through two mechanism one is very simple is what it

mechanism one is very simple is what it

mechanism one is very simple is what it does occludes the two pieces together

does occludes the two pieces together

does occludes the two pieces together and we call it head to tail joining this

and we call it head to tail joining this

and we call it head to tail joining this mechanism is not very efficient because

mechanism is not very efficient because

mechanism is not very efficient because often the process is not very effective

often the process is not very effective

often the process is not very effective the the hands are damaged and when they

the the hands are damaged and when they

the the hands are damaged and when they brought together they carry on the

brought together they carry on the

brought together they carry on the damage another mechanism that he used is

damage another mechanism that he used is

damage another mechanism that he used is much it’s much more effective and in

much it’s much more effective and in

much it’s much more effective and in principle exploit the fact that all

principle exploit the fact that all

principle exploit the fact that all living organisms have inherited two

living organisms have inherited two

living organisms have inherited two copies of their DNA one from the father

copies of their DNA one from the father

copies of their DNA one from the father and one from the matter and all the

and one from the matter and all the

and one from the matter and all the genes are arranged in segments that we

genes are arranged in segments that we

genes are arranged in segments that we call chromosomes so what happened when

call chromosomes so what happened when

call chromosomes so what happened when the damage kicks in and breaks the DNA

the damage kicks in and breaks the DNA

the damage kicks in and breaks the DNA in two piece what happens is that

in two piece what happens is that

in two piece what happens is that damaged ends are trimmed the damaged

damaged ends are trimmed the damaged

damaged ends are trimmed the damaged fragments aligned to the undamaged copy

fragments aligned to the undamaged copy

fragments aligned to the undamaged copy of the chromosome and the gap it’s

of the chromosome and the gap it’s

of the chromosome and the gap it’s filled and you generate a faithful copy

filled and you generate a faithful copy

filled and you generate a faithful copy of the damaged chromosome this mechanism

of the damaged chromosome this mechanism

of the damaged chromosome this mechanism is very effective and is mainly used by

is very effective and is mainly used by

is very effective and is mainly used by reproductive cells those that produce

reproductive cells those that produce

reproductive cells those that produce spermatozoa in the mail and egg cells in

spermatozoa in the mail and egg cells in

spermatozoa in the mail and egg cells in the female and this is very important

the female and this is very important

the female and this is very important because you’d want to transmit an

because you’d want to transmit an

because you’d want to transmit an undamaged copy of your chromosome to

undamaged copy of your chromosome to

undamaged copy of your chromosome to your daughters and sons now why this is

your daughters and sons now why this is

your daughters and sons now why this is important why I’m telling you these

important why I’m telling you these

important why I’m telling you these mechanism about DNA repair well because

mechanism about DNA repair well because

mechanism about DNA repair well because they are very relevant to understand how

they are very relevant to understand how

they are very relevant to understand how this mechanism can be harnessed to

this mechanism can be harnessed to

this mechanism can be harnessed to develop a technology can spread the

develop a technology can spread the

develop a technology can spread the genetic modification from few organism

genetic modification from few organism

genetic modification from few organism to an entire species and this is a way

to an entire species and this is a way

to an entire species and this is a way the way we use this technology is the

the way we use this technology is the

the way we use this technology is the story that I’m going to tell you today

story that I’m going to tell you today

story that I’m going to tell you today we use this mechanism to transform the

we use this mechanism to transform the

we use this mechanism to transform the way how we can control vector borne

way how we can control vector borne

way how we can control vector borne disease

disease

disease now the story starts about 15 years ago

now the story starts about 15 years ago

now the story starts about 15 years ago when myself and my colleague at imperial

when myself and my colleague at imperial

when myself and my colleague at imperial college develop a technology to

college develop a technology to

college develop a technology to genetically modified mosquitoes so the

genetically modified mosquitoes so the

genetically modified mosquitoes so the vector of human malaria we thought that

vector of human malaria we thought that

vector of human malaria we thought that by inserting a genetic modification that

by inserting a genetic modification that

by inserting a genetic modification that impair the ability of the parasite to

impair the ability of the parasite to

impair the ability of the parasite to develop in the mosquito we could

develop in the mosquito we could

develop in the mosquito we could contribute we new tool for for vector

contribute we new tool for for vector

contribute we new tool for for vector control the objective as I said was to

control the objective as I said was to

control the objective as I said was to introduce DNA in the mosquito in this we

introduce DNA in the mosquito in this we

introduce DNA in the mosquito in this we started at the beginning by just

started at the beginning by just

started at the beginning by just introducing fluorescent gene that it was

introducing fluorescent gene that it was

introducing fluorescent gene that it was to monitor how the genetic modification

to monitor how the genetic modification

to monitor how the genetic modification passed on generation by generation and

passed on generation by generation and

passed on generation by generation and this was done in mosquito that transmits

this was done in mosquito that transmits

this was done in mosquito that transmits human malaria because I mentioned to you

human malaria because I mentioned to you

human malaria because I mentioned to you before malaria is a huge health problem

before malaria is a huge health problem

before malaria is a huge health problem and it kills half a million children

and it kills half a million children

and it kills half a million children every year and it’s very difficult to

every year and it’s very difficult to

every year and it’s very difficult to control with available tools so we’ll

control with available tools so we’ll

control with available tools so we’ll come to this a little later now the

come to this a little later now the

come to this a little later now the problem we had there is out to spread

problem we had there is out to spread

problem we had there is out to spread this useful genetic modification from a

this useful genetic modification from a

this useful genetic modification from a few organism in the lab to an entire

few organism in the lab to an entire

few organism in the lab to an entire wild population now the the problem

wild population now the the problem

wild population now the the problem there originates from the very law of

there originates from the very law of

there originates from the very law of genetic ready T now this was the as we

genetic ready T now this was the as we

genetic ready T now this was the as we talked about boundary the boundary in

talked about boundary the boundary in

talked about boundary the boundary in which we had to break was the law of

which we had to break was the law of

which we had to break was the law of heredity now every organism that

heredity now every organism that

heredity now every organism that reproduces sexually as I mentioned to

reproduces sexually as I mentioned to

reproduces sexually as I mentioned to you before inherited two sets of DNA one

you before inherited two sets of DNA one

you before inherited two sets of DNA one from the father and one from the mother

from the father and one from the mother

from the father and one from the mother the arranging chromosome each chromosome

the arranging chromosome each chromosome

the arranging chromosome each chromosome contains genes now the genes are

contains genes now the genes are

contains genes now the genes are transmitted to the MA to the progeny the

transmitted to the MA to the progeny the

transmitted to the MA to the progeny the genes of the father and two genes of the

genes of the father and two genes of the

genes of the father and two genes of the mother only twelve of them in a mutually

mother only twelve of them in a mutually

mother only twelve of them in a mutually exclusive manner either you transmit the

exclusive manner either you transmit the

exclusive manner either you transmit the gene of the mother or you transmit the

gene of the mother or you transmit the

gene of the mother or you transmit the gene of the father now

gene of the father now

gene of the father now this generates a big problem because the

this generates a big problem because the

this generates a big problem because the genetic modification does not increase

genetic modification does not increase

genetic modification does not increase generation after generation we can make

generation after generation we can make

generation after generation we can make a sort of small beautiful experiment

a sort of small beautiful experiment

a sort of small beautiful experiment ourselves we start with a genetic level

ourselves we start with a genetic level

ourselves we start with a genetic level they fight mosquito which has to copy of

they fight mosquito which has to copy of

they fight mosquito which has to copy of our DNA one modified and whatnot and we

our DNA one modified and whatnot and we

our DNA one modified and whatnot and we cross it with a wild-type mosquito we

cross it with a wild-type mosquito we

cross it with a wild-type mosquito we see that the beginning we start with one

see that the beginning we start with one

see that the beginning we start with one chromosome genetically modified after

chromosome genetically modified after

chromosome genetically modified after the second generation we have two but if

the second generation we have two but if

the second generation we have two but if you see the frequency as in change it

you see the frequency as in change it

you see the frequency as in change it was one in fourth and now is in two

was one in fourth and now is in two

was one in fourth and now is in two eight we can continue this experiment

eight we can continue this experiment

eight we can continue this experiment for hundreds of and regeneration the

for hundreds of and regeneration the

for hundreds of and regeneration the frequency will not change so what are

frequency will not change so what are

frequency will not change so what are our options

our options

our options how can we have an impact or malaria

how can we have an impact or malaria

how can we have an impact or malaria transmission well this is a big problem

transmission well this is a big problem

transmission well this is a big problem because our modeling scientists tell us

because our modeling scientists tell us

because our modeling scientists tell us that in order to reach an impact in in

that in order to reach an impact in in

that in order to reach an impact in in malaria endemic area which genetically

malaria endemic area which genetically

malaria endemic area which genetically modified mosquito you have to reach a

modified mosquito you have to reach a

modified mosquito you have to reach a frequency of 90% this means that the

frequency of 90% this means that the

frequency of 90% this means that the only way that we have to do it since the

only way that we have to do it since the

only way that we have to do it since the genetic modification doesn’t spread is

genetic modification doesn’t spread is

genetic modification doesn’t spread is to outnumber the resident mosquito with

to outnumber the resident mosquito with

to outnumber the resident mosquito with genetically modified mosquito this

genetically modified mosquito this

genetically modified mosquito this entails delivering billions of billions

entails delivering billions of billions

entails delivering billions of billions of mosquito of advanced air I mean I am

of mosquito of advanced air I mean I am

of mosquito of advanced air I mean I am sure we all agree that this is

sure we all agree that this is

sure we all agree that this is absolutely not possible and then at one

absolutely not possible and then at one

absolutely not possible and then at one point a friend of a colleague of mine a

point a friend of a colleague of mine a

point a friend of a colleague of mine a super bird came in my life in my

super bird came in my life in my

super bird came in my life in my allotment told me point out well you

allotment told me point out well you

allotment told me point out well you know not all the genes behave in this

know not all the genes behave in this

know not all the genes behave in this way there are some genes they have the

way there are some genes they have the

way there are some genes they have the ability to spread from few organism to

ability to spread from few organism to

ability to spread from few organism to an entire population this has been

an entire population this has been

an entire population this has been discovered and this gene has been

discovered and this gene has been

discovered and this gene has been discovered in yeast they have the

discovered in yeast they have the

discovered in yeast they have the ability to spread so we’re very much

ability to spread so we’re very much

ability to spread so we’re very much interesting to understand how this gene

interesting to understand how this gene

interesting to understand how this gene work you know what I told you about this

work you know what I told you about this

work you know what I told you about this copy and paste repair mechanism will

copy and paste repair mechanism will

copy and paste repair mechanism will come very useful to understand how this

come very useful to understand how this

come very useful to understand how this gene work and they can spread into a

gene work and they can spread into a

gene work and they can spread into a population so what they do these genes

population so what they do these genes

population so what they do these genes they’re in principle encode for enzyme

they’re in principle encode for enzyme

they’re in principle encode for enzyme they have the ability to damage the DNA

they have the ability to damage the DNA

they have the ability to damage the DNA to make it in pieces to count they’re

to make it in pieces to count they’re

to make it in pieces to count they’re very specific they bind to DNA and to

very specific they bind to DNA and to

very specific they bind to DNA and to break into piece now when this happens

break into piece now when this happens

break into piece now when this happens during the

during the

during the production of spermatozoa and germ cells

production of spermatozoa and germ cells

production of spermatozoa and germ cells in the in reproductive cells then the

in the in reproductive cells then the

in the in reproductive cells then the genetic modification is copied to both

genetic modification is copied to both

genetic modification is copied to both maternal and paternal and maternal and

maternal and paternal and maternal and

maternal and paternal and maternal and paternal chromosomes so they all the

paternal chromosomes so they all the

paternal chromosomes so they all the progeny all inherited the genetic

progeny all inherited the genetic

progeny all inherited the genetic modification so in principle they’re

modification so in principle they’re

modification so in principle they’re able to subvert the law of heredity we

able to subvert the law of heredity we

able to subvert the law of heredity we call these genes homing endonucleases

call these genes homing endonucleases

call these genes homing endonucleases but today we will we will call them copy

but today we will we will call them copy

but today we will we will call them copy and paste genes because this is exactly

and paste genes because this is exactly

and paste genes because this is exactly what they do for the purpose of this of

what they do for the purpose of this of

what they do for the purpose of this of my presentation so what we did then we

my presentation so what we did then we

my presentation so what we did then we utilize these genes and we simply

utilize these genes and we simply

utilize these genes and we simply generate a genetic modified mosquito

generate a genetic modified mosquito

generate a genetic modified mosquito which carry the yeast copy and paste

which carry the yeast copy and paste

which carry the yeast copy and paste gene and we monitor whether we were able

gene and we monitor whether we were able

gene and we monitor whether we were able to spread a genetic modification in the

to spread a genetic modification in the

to spread a genetic modification in the population the genetic modification as I

population the genetic modification as I

population the genetic modification as I mentioned to you for sake of simplicity

mentioned to you for sake of simplicity

mentioned to you for sake of simplicity was a gene that confers a fluorescent

was a gene that confers a fluorescent

was a gene that confers a fluorescent green color to the mosquito so that we

green color to the mosquito so that we

green color to the mosquito so that we could monitor how this genetic

could monitor how this genetic

could monitor how this genetic modification was passed on from

modification was passed on from

modification was passed on from generation to generation and the results

generation to generation and the results

generation to generation and the results was completely astonishing starting from

was completely astonishing starting from

was completely astonishing starting from few genetically modified mosquito we

few genetically modified mosquito we

few genetically modified mosquito we could see that the genetic modification

could see that the genetic modification

could see that the genetic modification spread to an entire population however

spread to an entire population however

spread to an entire population however the story doesn’t finish here because

the story doesn’t finish here because

the story doesn’t finish here because this copy and paste this gene they have

this copy and paste this gene they have

this copy and paste this gene they have a problem they are very difficult to

a problem they are very difficult to

a problem they are very difficult to re-engineer so if you want to use in

re-engineer so if you want to use in

re-engineer so if you want to use in mosquito you have in principle to

mosquito you have in principle to

mosquito you have in principle to reprogram they are used to attack yeast

reprogram they are used to attack yeast

reprogram they are used to attack yeast sequence if you want to attack a

sequence if you want to attack a

sequence if you want to attack a mosquito gene or you want to make a

mosquito gene or you want to make a

mosquito gene or you want to make a modification in the mosquito you have to

modification in the mosquito you have to

modification in the mosquito you have to reprogram their specificity in order to

reprogram their specificity in order to

reprogram their specificity in order to bind and cut mosquito sequence that is

bind and cut mosquito sequence that is

bind and cut mosquito sequence that is proven to be very very difficult however

proven to be very very difficult however

proven to be very very difficult however few years ago and you genes the has the

few years ago and you genes the has the

few years ago and you genes the has the ability to counter the DNA has been

ability to counter the DNA has been

ability to counter the DNA has been discovered I’m sure some of you are

discovered I’m sure some of you are

discovered I’m sure some of you are familiar with his name is CRISPR this is

familiar with his name is CRISPR this is

familiar with his name is CRISPR this is a it’s nothing special about this

a it’s nothing special about this

a it’s nothing special about this Jim this is an enzyme that cuts DNA what

Jim this is an enzyme that cuts DNA what

Jim this is an enzyme that cuts DNA what makes it special is as very easy to

makes it special is as very easy to

makes it special is as very easy to reprogram it’s very easy in principle

reprogram it’s very easy in principle

reprogram it’s very easy in principle allows to attack and target any DNA

allows to attack and target any DNA

allows to attack and target any DNA sequence that you wish and currently

sequence that you wish and currently

sequence that you wish and currently this gene is widely used for genetic

this gene is widely used for genetic

this gene is widely used for genetic engineer for gene editing and for this

engineer for gene editing and for this

engineer for gene editing and for this and for manipulating DNA so we thought

and for manipulating DNA so we thought

and for manipulating DNA so we thought that we could use this genes the cat DNA

that we could use this genes the cat DNA

that we could use this genes the cat DNA in place of the copy and paste gene of

in place of the copy and paste gene of

in place of the copy and paste gene of the yeast because it offers much more

the yeast because it offers much more

the yeast because it offers much more flexibility but this time rather than

flexibility but this time rather than

flexibility but this time rather than carrying a fluorescent gene we want to

carrying a fluorescent gene we want to

carrying a fluorescent gene we want to attack a gene of the mosquito that is

attack a gene of the mosquito that is

attack a gene of the mosquito that is involved with mosquito reproduction to

involved with mosquito reproduction to

involved with mosquito reproduction to the ability of the mosquito to lay egg

the ability of the mosquito to lay egg

the ability of the mosquito to lay egg so our expectation was that the gene

so our expectation was that the gene

so our expectation was that the gene spread as that is spread it diminished

spread as that is spread it diminished

spread as that is spread it diminished the ability of the mosquito to lay egg

the ability of the mosquito to lay egg

the ability of the mosquito to lay egg up to the point of the population crash

up to the point of the population crash

up to the point of the population crash and doing so we developed this this

and doing so we developed this this

and doing so we developed this this genetic modification and the results

genetic modification and the results

genetic modification and the results were astonishing the gene spread very

were astonishing the gene spread very

were astonishing the gene spread very effectively the mosquito have lost the

effectively the mosquito have lost the

effectively the mosquito have lost the ability to lay egg and in principle this

ability to lay egg and in principle this

ability to lay egg and in principle this shows that is possible to introduce a

shows that is possible to introduce a

shows that is possible to introduce a genetic modification in few library

genetic modification in few library

genetic modification in few library mosquito spread to an entire population

mosquito spread to an entire population

mosquito spread to an entire population and interfere with their ability to

and interfere with their ability to

and interfere with their ability to multiply and reproduce this is I think a

multiply and reproduce this is I think a

multiply and reproduce this is I think a changing moment in the in the time of

changing moment in the in the time of

changing moment in the in the time of genetics and offers the possibility to

genetics and offers the possibility to

genetics and offers the possibility to develop genetic modification the spread

develop genetic modification the spread

develop genetic modification the spread that make mosquito immune to disease

that make mosquito immune to disease

that make mosquito immune to disease that make mosquito in enable to

that make mosquito in enable to

that make mosquito in enable to reproduce but can also be applied to

reproduce but can also be applied to

reproduce but can also be applied to other field for example for to attack

other field for example for to attack

other field for example for to attack invasive species or to combat other

invasive species or to combat other

invasive species or to combat other plant or animal which imprints for

plant or animal which imprints for

plant or animal which imprints for contaminate environment so the

contaminate environment so the

contaminate environment so the implication goes beyond vector control

implication goes beyond vector control

implication goes beyond vector control now of course for us this was a moment

now of course for us this was a moment

now of course for us this was a moment of great excitement however also

of great excitement however also

of great excitement however also generate tremendous debate because we

generate tremendous debate because we

generate tremendous debate because we read that this technology in principle

read that this technology in principle

read that this technology in principle is dangerous

is dangerous

is dangerous accidental release could swipe through

accidental release could swipe through

accidental release could swipe through the earth and changing the mock-up of a

the earth and changing the mock-up of a

the earth and changing the mock-up of a species is so easy to do the biology

species is so easy to do the biology

species is so easy to do the biology student could develop a gene Drive on on

student could develop a gene Drive on on

student could develop a gene Drive on on its own well let me assure you this is

its own well let me assure you this is

its own well let me assure you this is this is not the case this technology is

this is not the case this technology is

this is not the case this technology is very complex require a lot of skill from

very complex require a lot of skill from

very complex require a lot of skill from mathematical modeling genetic engineer

mathematical modeling genetic engineer

mathematical modeling genetic engineer from molecular biology a population

from molecular biology a population

from molecular biology a population genetics is not a do-it-yourself

genetics is not a do-it-yourself

genetics is not a do-it-yourself technology now you may ask why we need

technology now you may ask why we need

technology now you may ask why we need to use this technology well the reason

to use this technology well the reason

to use this technology well the reason is that current technology to control

is that current technology to control

is that current technology to control vector borne disease are not under point

vector borne disease are not under point

vector borne disease are not under point it’s more than 100 years that the

it’s more than 100 years that the

it’s more than 100 years that the mesquita have been identified and the

mesquita have been identified and the

mesquita have been identified and the cause of malaria and we still are not

cause of malaria and we still are not

cause of malaria and we still are not able to eradicate the disease we have

able to eradicate the disease we have

able to eradicate the disease we have bed nets

bed nets

bed nets we have drag treatment we have

we have drag treatment we have

we have drag treatment we have insecticides we can use environmental

insecticides we can use environmental

insecticides we can use environmental management power all this measure

management power all this measure

management power all this measure requires huge effort requires logistics

requires huge effort requires logistics

requires huge effort requires logistics require political commitment they

require political commitment they

require political commitment they require sustainability something is very

require sustainability something is very

require sustainability something is very rare to find in the most poor country in

rare to find in the most poor country in

rare to find in the most poor country in the world where the problem was

the world where the problem was

the world where the problem was stability sustainability is one of the

stability sustainability is one of the

stability sustainability is one of the major issue what they are the advantage

major issue what they are the advantage

major issue what they are the advantage of the gene Drive well they do the work

of the gene Drive well they do the work

of the gene Drive well they do the work for us

for us

for us they are cost-effective and at the same

they are cost-effective and at the same

they are cost-effective and at the same time they’re very democratic because

time they’re very democratic because

time they’re very democratic because everybody will benefit independent of

everybody will benefit independent of

everybody will benefit independent of social status or their wealth and their

social status or their wealth and their

social status or their wealth and their culture so we believe that this

culture so we believe that this

culture so we believe that this technology in the very near future will

technology in the very near future will

technology in the very near future will be available now the problem is not for

be available now the problem is not for

be available now the problem is not for us to decide whether this technology

us to decide whether this technology

us to decide whether this technology will be released in the field we have

will be released in the field we have

will be released in the field we have the responsibility to make a safe and

the responsibility to make a safe and

the responsibility to make a safe and effective technology but is the

effective technology but is the

effective technology but is the responsibility of the people living in

responsibility of the people living in

responsibility of the people living in the endemic country is the

the endemic country is the

the endemic country is the responsibility of the government of

responsibility of the government of

responsibility of the government of their health authority to assess the

their health authority to assess the

their health authority to assess the risk of benefit ultimately decide

risk of benefit ultimately decide

risk of benefit ultimately decide whether to use or not I don’t want to

whether to use or not I don’t want to

whether to use or not I don’t want to take the credit for what I have told you

take the credit for what I have told you

take the credit for what I have told you actually that where the credit goes to

actually that where the credit goes to

actually that where the credit goes to number of student and work and people

number of student and work and people

number of student and work and people that work in my lab that put a lot of

that work in my lab that put a lot of

that work in my lab that put a lot of enthusiasm a lot of I in iDVD and energy

enthusiasm a lot of I in iDVD and energy

enthusiasm a lot of I in iDVD and energy my objective and my aspiration is to

my objective and my aspiration is to

my objective and my aspiration is to live in a better world a world without

live in a better world a world without

live in a better world a world without malaria

”

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