Mosquito-Borne Diseases Published May 20, 2015 By Staff Reports 82d AMDS Public Health Flight SHEPPARD AIR FORCE BASE, Texas -- This summer, protect yourself and loved ones from mosquito-borne diseases. Infectious mosquitos are the most common source of transmission for West Nile Virus (WNV) & Chikungunya. WNV infection causes flu-like symptoms, while Chikungunya may cause severe headache, muscle pain, joint-swelling or rash. There is no vaccine or treatment for either of these viruses. Prevention · Use insect repellent containing at least 30% DEET. · Wear proper protective clothing such as long sleeves & pants. · Remove standing water in your surrounding area (i.e. old tires, clogged gutter drains, flower pots, & pet dishes). · Install or repair screens around windows & doors. · Avoid/reduce time outdoors during dusk & dawn when mosquitos are most active.