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Frequently asked questions about West Nile Virus

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Frequently asked questions about West Nile Virus:
Why don't mosquito bites bleed?
If male mosquitos don't bite, what do THEY eat?
What is a mosquitofish?
Do "Bug Zappers" really work?
What repellant should I use to keep mosquitos away?
Why does it seem like mosquitos like to bite some people better than others?
Are mosquitos good for anything?
Why do the bites itch?
Can mosquitos hatch eggs in salt water?
Do mosquitos like colored light better than plain white light bulbs?
Does being pregnant put you at an increased risk for WNV?

 

They don't bleed because when the mosquito bites a human or other animal, she unknowingly deposits some of her saliva in the person or other animal. The saliva prevents the bite from bleeding.

Male mosquitos feed on plant juices, nectar, and some organic matter in the dirt. They do not feed on humans or other animals.

Mosquitofish can be placed in outdoor pools. They are special fish you can purchase. They eat hundreds of thousands of mosquito larvae!

They do kill many insects, but not all of them. And there is one drawback to these zappers. They don't only kill mosquitos, but "good" insects as well. Remember, certain other insects eat mosquitos!

You need to purchase an insect repellant which contains the chemical "Deet". Apply according to directions, you don't need to spray or smear it on excessively. Don't drink it, or get it into your eyes. You can also purchase a clothing treatment to soak your clothes in if you are going to travel in an infested area. This treatment contains a chemical called "Permethrin". Officals recommend using both this clothing treatment and a repellant if you are going to be in contanimated areas.

Mosquitos are drawn to those who eat above average amounts of sugar. They can also detect latic acid (a chemical produced in the muscles during physical activity). The more physically active you are, the more attracted the critters are to your body.

Mosquitos provide food for other insects. Bats, in particular, eat mosquitos. So do some birds, and of course mosquito fish.

When a mosquito bites, it injects saliva in the human or other animal. Human bodies react to this saliva by itching. As your body works on eliminating the chemicals the insect leaves the skin, it swells, which further inflames the bite site.

Yes. Mosquitos can also lay eggs in swamps, tidal marshes, flood water, and rice fields.

Although mosquitos are drawn to any light, they do seem to prefer yellow incandescent bulbs.

Nope! There is no documented evidence anywhere that being pregnant puts you at a greater risk than any other condition.

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Tooele County Health Department Community Health
151 North Main Street • Tooele, Utah • 84074
(435) 277-2300   •  (435) 277-2304 Fax
"Protecting Your Future"