West Nile Virus

Los Angeles County health officials have confirmed the county’s first human cases of West Nile virus this year, saying six cases have been identified since late July. 

As temperatures in Southern California continue to rise, West Nile virus cases are expected to increase. Here’s what to know: The “West Nile Virus” was first identified in the sub-region of Uganda called The West Nile. The virus runs during mosquito season, which takes place from summer through fall. It is present within all states of the continental U.S....

It’s mosquito season again! Here are some things to know about the most common mosquito-borne disease and how to protect yourself.

Los Angeles County has reported its first death from the West Nile Virus in the 2021 season.

The first batch of mosquitoes infected with West Nile virus in Orange County this year have been found in Fullerton, officials said Friday.

Mosquitoes infected with West Nile virus were discovered in the east Coachella Valley community of Mecca, officials announced Thursday.

California reported the state’s first death from the West Nile virus this year.

A vector control official reminded people on Friday to take precautions when outside this holiday weekend to protect against West Nile virus (WNV), the most common mosquito-borne disease that affects residents in Los Angeles County.

Mosquitoes aren’t just annoying – they can spread diseases like yellow fever and West Nile virus. Orange County is spraying to kill off the pests while they’re still larvae, to nip the problem in the bud. Vikki Vargas reports for NBC4 on June 29, 2021.

The first indication this year of West Nile virus circulating in Los Angeles County was detected in a dead crow collected in South Pasadena, the San Gabriel Valley Mosquito & Vector Control District announced Monday.

Twenty-six more mosquito samples tested positive for West Nile virus this week in Los Angeles County, bringing to 264 the number of positive samples so far this year, vector control officials reported Friday.

A Garden Grove man succumbed to West Nile virus, the first fatality related to the virus so far this year in Orange County, the Health Care Agency reported Wednesday. The agency described the victim as elderly, but did not release his age or when he died of WNV “infection complications.” The county has had five symptomatic WNV infections reported this…

Confirmation of West Nile virus among mosquitoes netted in Murrieta will require pest eradication operations over a nearly five acre space within the city this week, according to vector control officials. The Riverside County Department of Environmental Health has scheduled “ultra-low volume” insecticide spraying in the area of Calvary Murrieta Christian School on Wednesday between 5 a.m. and 7 a.m….

Orange County Mosquito and Vector Control District officials have found the first sample of mosquitoes infected with West Nile Virus in Costa Mesa, prompting another warning today to residents to help with the battle against the pests by tipping out stagnant water around their homes and using insect repellent.

The Greater Los Angeles County Vector Control District announced Tuesday it has identified a high level of activity by mosquitoes infected with West Nile virus in Studio City and outlined a plan to fight back. A truck-mounted mosquito control treatment is scheduled Thursday between 2 a.m. and 5 a.m. to decrease the mosquito population and lower the risk of potential…

Los Angeles County health officials Wednesday confirmed the first death due to West Nile virus in the county this year. The patient was described only as an “elderly resident” of the South Los Angeles area. The person was hospitalized and died from West Nile virus-associated neuro-invasive disease. West Nile virus continues to be a serious health threat to residents in…

A child who tested positive for West Nile Virus is the first person to be infected this year in Orange County, officials reported Monday. The child, whose age and identity are protected, was diagnosed sometime last week and was hospitalized but is expected to recover, according to the Orange County Health Care Agency. This was the first time this year…

Mosquitoes in Pomona tested positive for West Nile virus, officials with the San Gabriel Valley Mosquito & Vector Control District announced Monday. After discovering the presence of the mosquito-borne disease in a routine test, control officials encouraged residents to take action now to prevent an outbreak from spreading in their communities. “West Nile virus is endemic, which means we’ll...

Mosquitoes netted in Nuevo tested positive for West Nile virus, but there were no immediate plans to start pest control spraying in the area, Riverside County health officials said Friday. A batch from a collection site in the area of Orange Street and Reservoir Avenue bordering Mystic Field was confirmed to be carrying WNV, according to the Department of Environmental…

With potentially deadly mosquito-borne viruses continuing to be detected in the Coachella Valley, vector control officials are planning to carry out further pesticide spray applications beginning tomorrow. Targeted mosquito eradication efforts are scheduled Thursday through Saturday from 2 a.m to 6 a.m. in Palm Desert and Indian Wells, near where mosquitoes infected with West Nile virus and St. Louis encephalitis were previously...