State confirms West Nile virus-related death

California public health officials this week confirmed the first 2021 death linked to West Nile virus.

The death occurred in San Luis Obispo County, officials said. Evidence suggests the person became infected not in that county but during travel to an area of California where the virus is endemic, they said.

“We extend our sincere condolences to this patient’s family,” said San Luis Obispo County Health Officer Dr. Penny Borenstein. “This loss is a tragic reminder that West Nile Virus is here in California and can cause very serious illness. Please, be sure to protect yourself from mosquito bites and drain any sources of standing water where mosquitoes can breed.”

Officials didn’t provide details about the individual who died.

Risk of the disease, which is spread to humans and animals by infected mosquitoes, typically increases during the summer and lasts through the fall, officials said. Most people who are infected avoid serious illness, although less than 1% can develop serious neurological illnesses such as encephalitis or meningitis. People age 50 or older and those with diabetes or hypertension have a higher chance of getting ill, officials said.

To reduce the risk of infection, officials recommend removing standing water, making sure window and door screens are sealed, using insect repellent and wearing long sleeves and pants while outdoors, particularly at dawn and dusk, when mosquitoes are most likely to bite. Bird baths, fountains and pet dishes should be cleaned at least once a week, and gutters should be cleared so water can drain properly.