FYI . . . Mosquitos carry the virus. I killed the mosquitos and solved the problem in my yard and for several yards around. If there is a mosquito within a mile it will find me.
I bought a large bug wacker (get the half acre size or larger). Go to the butcher and get some fresh beef liver and ask the butcher for extra blood. (Yes, he will look at you like you are crazy.) Hang the bug wacker about head high in your yard between your home and the source of the mosquitos. Attach the open container of beef liver and blood to the bottom of the bug wacker. Then go and plug the bug wacker in. The next morning unplug the bug wacker and get the dead mosquitos out of the grid and plug in the bug wacker again.
I had so many mosquitos around my home I couldn't go outside at dusk or later. I had a pool we couldn't go swimming in. I had a BBQ grill I couldn't use for cooking or entertaining in the evening.
I got two to three cups of mosquitos out of my bug wacker for the first two weeks. Then I got one + cups of mosquitos for the next two weeks. By the end of the 4th week I could go outside at dusk or at night and no mosquitos. The bats no longer flew around our home.
Why does it work? Mosquitos need blood as part of their reproductive process. Beef liver and blood works better than pork or chicken or anything else I tried.
Good luck to you and yours.