Nov. 01--California health officials have reported 28 confirmed deaths so far this year from West Nile virus.
Many of those who died were senior citizens, who health officials said are at a higher risk of getting sick and are more likely to develop complications. Studies indicate that those with diabetes and or hypertension are at greatest risk for serious illness.
As of Friday, 517 people in 30 counties have tested positive for the virus this year, according to the California Department of Health's website. Thirty-three California counties, including Los Angeles, Orange and Ventura, have reported virus activity so far this year, four more than this time last year, and higher than the five-year average of 22.
The related fatalities were reported in the following counties: Butte 1, Kern 1, Los Angeles 8, Nevada 1, Orange 3, Riverside 6, San Bernardino 2, San Diego 5 and Ventura 1.
"West Nile virus activity is more widespread in 2015 than in years past," California Department of Public Health Director Dr. Karen Smith said in a statement earlier this year. "Californians need to be vigilant in protecting themselves."
The virus is transmitted to humans and animals by the bite of an infected mosquito. The risk of serious illness to most people is low. However, some individuals -- less than 1% -- can develop a serious neurological illness such as encephalitis or meningitis.
A record 31 people died in California in 2014 from West Nile virus.
Experts think California's drought may have led to the increased West Nile presence. With fewer sources of water for birds and mosquitoes, they're coming into closer contact with humans in their search for water, increasing the chance of transmission.
Health officials recommend using insect repellent to stave off mosquitoes and wearing protective clothing during dawn and dusk, when the insects are most active. They also recommend emptying vessels such as flower pots or buckets because mosquitoes lay eggs in standing water.
carlos.lozano@latimes.com
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