The Pasadena Public Health Department (PPHD) has confirmed the city’s first human case of West Nile virus for 2025, officials announced Thursday, Oct. 10, in a department press release. The case was identified on Oct. 9, marking the first local infection since 2022.
Health officials are urging Pasadena residents to take precautions against mosquito bites, which are the primary source of transmission for the virus. West Nile virus is most often detected during warmer months when mosquitoes are breeding and can quickly spread disease, according to the release.
“There is no vaccine or cure for West Nile virus in humans,” said Dr. Parveen Kaur, Acting Health Officer. “By taking preventive measures, we can reduce the risk of infection and help protect our community.”
PPHD continues to monitor disease activity and is working with the San Gabriel Valley Mosquito & Vector Control District to inspect and treat public areas where mosquitoes breed.
Health officials emphasized that residents play a key role in reducing the threat of West Nile virus. To help prevent mosquito bites and reduce the presence of mosquitoes, PPHD recommends the following actions:
• Tip out stagnant water around the home weekly
• Toss unused containers that can collect water
• Use and repair window screens
• Wear protective clothing and apply insect repellent containing Picaridin, DEET, Oil of Lemon Eucalyptus (or PMD), or IR3535
“PPHD urges residents to take an active role in reducing the threat of West Nile virus by following mosquito prevention tips,” said Manuel Carmona, Director of Public Health. “The most effective way to stay protected is to prevent mosquito bites.”
For more information, residents can contact the City Service Center at (626) 744-7311 during business hours, Monday through Friday.
Get our daily Pasadena newspaper in your email box. Free.
Get all the latest Pasadena news, more than 10 fresh stories daily, 7 days a week at 7 a.m.
