Injecting mosquitoes

Today's StarTrib has a reprint from the LA Times about a breakthrough to genetically modify the mosquito so that it will block development of a malaria parasite.  "To test the effect . . ., researchers injected 90 of the mosquitoes with the malaria parasite."  Tiny, tiny little needles getting lost in a mosquito nest?  Oh how much harder to find than normal needles in a haystack.  Science is such a challenge!