Microsoft are building drones to be used to catch mosquitoes. The aim  is get larger samples of the various diseases that mosquitoes carry. If  they can predict a build up of a disease being carried, then a potential epidemic could be stopped by getting vaccine prepared and clinics up and running quickly.

Read more at : http://www.sciencealert.com/microsoft-is-building-a-drone-army-to-hunt-down-mosquitoes-and-stop-epidemics

Clever use of modern technology.