1970s

Down to Earth - - HEALTH -

In 1970, a vil­lage in Myan­mar suc­cess­fully erad­i­cated

Culex mos­quito through ge­netic mod­i­fi­ca­tion

In 1971, In­dia de­cided to con­duct a trial on Aedes and

Culex mosquitoes. WHO started a malaria con­trol pro­gramme by in­tro­duc­ing ster­ile male mosquitoes. But it was stopped af­ter op­po­si­tion

In 1972, chem­i­cal ster­il­i­sa­tion process was used to achieve 99.8 per cent steril­ity in male

Anophe­les mosquitoes. The suc­cess­ful trial was con­ducted in El Sal­vador, where 4.4 mil­lion ster­ile mosquitoes were re­leased in a 1,500 ha area

In 1974, an ex­per­i­ment on Aedes was started in an iso­lated Kenyan vil­lage. Some 814 ster­ile male mosquitoes were re­leased each day for nine weeks in the vil­lage. It was un­suc­cess­ful

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