California Records First Human West Nile Virus Death of 2021
In California’s San Luis Obispo County, the first human West Nile Virus (WNV) death of 2021 has been reported, said health authorities.
Tomas J. Aragon, director of the California Department of Public Health (CDPH), said on Friday that more cases of the fatal virus, which could be transmitted to humans and animals by the bite of an infected mosquito, had been reported recently, reports Xinhua news agency.
As of July 9, WNV had been detected in 45 dead birds from six counties and 177 mosquito samples from 13 counties, the CDPH noted, adding hot temperatures this month are contributing to increasing numbers of mosquitoes and the increased risk of virus transmission to humans.
Nationwide, new reports from Centers for Disease Control and Prevention showed that Arizona, Arkansas, Illinois, Iowa, Massachusetts, New York and Colorado had detected mosquitoes that carry the WNVs, and humans had contracted the disease in four of these places.
The CDPH said WMV is influenced by many factors, including climate, the number and types of birds and mosquitoes in an area, and the level of WNV immunity in birds.
While the risk of serious illness to most people is low, some individuals, less than 1 per cent, can develop serious neurologic illnesses such as encephalitis or meningitis.
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