This doesn't target the pathogen, but the mosquitoes transmitting it. So the ecosystem effects are fairly different from those you implied. Although, I wouldn't

This doesn't target the pathogen, but the mosquitoes transmitting it. So the ecosystem effects are fairly different from those you implied. Although, I wouldn't know what those effects might be either way. To answer the GP more concretely: It is far easier for me to ignore the crisis far away than to risk the tiniest chance of problems close by. Yes, that's deplorable.