Saturday, January 15, 2005
Heavy rains may increase West Nile virus risk
By: RUTH MARVIN WEBSTER - For the North (San Diego) County Times
Health officials are closely watching the county's swelling lagoons, rivers and ponds, and taking stock that there may be more standing water come springtime.
Standing water is a key breeding ground for mosquitoes that carry the West Nile virus, a mosquito-borne virus that causes flulike symptoms such as body aches and fever. In severe cases it can cause encephalitis, a swelling of the brain and spinal cord that can be fatal.
Mosquitoes become infected and spread the virus to humans and other animals by feeding on infected birds.
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For now, officials say, it's still too early to tell.
"This is not the mosquitoes' prime breeding season," Miller said. "We will need about two weeks of consistently warm weather ---- in the high seventies ---- before we see much mosquito activity. That doesn't usually happen until the end of March or beginning of April.Last year, we saw increasing populations in May."
Officials warn that the public should remain vigilant in eliminating standing water, even in winter.And though mosquitoes are considerably less active and thus less likely to breed then, county employees continue to trap adult mosquitoes.
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http://www.nctimes.com/articles/2005/01/15/news/top_stories/21_44_151_14_05.txt