Anaheim senior hospitalized in O.C.’s first West Nile Virus case of 2025
(Santa Ana, CA) — An Anaheim resident over the age of 80 has tested positive for West Nile virus (WNV), marking the first confirmed human WNV case in Orange County…
Anaheim
Disease
Garden Grove
Health and Medical
Huntington Beach
Insects
Orange
Orange County
Orange County Vector Control District
Stanton
Westminster
Infected mosquitoes detected in north central Orange County
Garden Grove, Calif. – The Orange County Mosquito and Vector Control District (OCMVCD) has detected elevated West Nile Virus (WNV) activity in the Cities of Anaheim, Orange, Huntington Beach, Westminster,…
O.C. Mosquito and Vector Control will spray mosquito-killing chemicals in Santa Ana from Sep. 10-12
Based on mosquito abundance and surveillance data, Orange County Mosquito and Vector Control District staff will conduct residential adult mosquito control in the City of Santa Ana on September 10th,…
First West Nile Virus positive mosquitoes confirmed in Santa Ana
The Orange County Mosquito and Vector Control District (OCMVCD) has confirmed that mosquitoes collected in the City of Santa Ana have tested positive for West Nile virus (WNV). These are…
O.C. Vector Control to spray toxic chemicals to kill mosquitoes in Santa Ana on August 6
The Orange County Vector Control District has announced upcoming mosquito control efforts to address an increase in mosquito abundance and the risk of mosquito-borne disease in the cities of Anaheim,…
First 2025 West Nile Virus positive mosquitoes confirmed in Orange County
The Orange County Mosquito and Vector Control District (OCMVCD) has confirmed that mosquitoes collected in the cities of Anaheim and Garden Grove have tested positive for West Nile virus (WNV).…
Oriental Fruit Fly quarantine lifted in Orange County
SACRAMENTO – June 11, 2025 – Thanks to the cooperation and committed efforts of Orange County area residents and local agricultural officials, the California Department of Food and Agriculture (CDFA), in…
Oriental Fruit Fly quarantine in effect in Orange County
SACRAMENTO, November 6, 2024 – A portion of Orange County has been placed under quarantine for the oriental fruit fly following the detection of eight flies in and around the…
Mosquito spraying in Santa Ana set for Sep. 10 to 12
Based on mosquito abundance and surveillance data, Orange County Mosquito and Vector Control District staff will conduct residential adult mosquito control in the cities of Brea, Santa Ana, Garden Grove,…
Mosquito spraying taking place near the Willowick Golf Course this week
The Orange County Mosquito and Vector Control District will be conducting an Ultra-Low Volume (ULV) adulticide treatment to address the increase in mosquito abundance and risk of mosquito-borne disease in…
First West Nile Virus positive mosquitoes confirmed in Santa Ana
Garden Grove, Calif. – The Orange County Mosquito and Vector Control District (OCMVCD) has confirmed that mosquitoes collected in the City of Santa Ana have tested positive for West Nile virus…
Learn how to avoid bites during O.C. Mosquito Awareness Week
It is National Mosquito Control Awareness Week! Don’t forget to protect yourself and your family from mosquito bites as you head outdoors. Swipe through for some tips from Orange County…
Mosquito control spraying operation set for Aug. 17-19 around Bristol and Edinger
The Orange County Mosquito and Vector Control District (OCMVCD) announced that it will be conducting residential mosquito control applications via truck in Santa Ana. The treatment area will be located…
The West Nile Virus has been detected in mosquitoes in Santa Ana
The Orange County Mosquito and Vector Control District (OCMVCD) has reported the presence of West Nile virus in mosquitoes in Santa Ana. Starting on August 10, the OCMVCD will conduct…
Mosquito chemical spraying set for August 10-12 in Santa Ana
The Orange County Mosquito and Vector Control District (OCMVCD) will be conducting residential mosquito control applications via truck in the City of Santa Ana. The treatment area will be located…