First Hantavirus Detection of 2026
Jan. 16, 2026 | 12:02 PMReading Time: 2 minutes
The County detected hantavirus in a Western harvest mouse found near Los Penasquitos Ranch House (92129) during a routine inspection.
Tag: hantavirus
Deer Mouse Tests Positive for Hantavirus
Oct. 29, 2025 | 2:45 PMReading Time: 2 minutes
A deer mouse collected in routine monitoring in Cuyamaca Rancho State Park has tested positive for the potentially deadly hantavirus, prompting County officials to remind people to be careful not to come in contact with wild rodents.
Credit: Shutterstock First Local Detection of Hantavirus in 2025
Jan. 13, 2025 | 10:17 AMReading Time: 2 minutes
A deer mouse collected on Jan. 3, 2025, in Cuyamaca Rancho State Park, has tested positive for the potentially deadly hantavirus.
Credit: Shutterstock Hantavirus Found in Mice at San Onofre State Campground
Sep. 16, 2024 | 12:07 PMReading Time: 2 minutes
Two mice collected from a campground trail at San Onofre State Beach as part of ongoing surveillance to protect public health have tested positive for the potentially deadly hantavirus. County Vector Control team is working with campground officials to notify campground visitors and staff.
Credit: Shutterstock First Local Detection of Hantavirus in 2024
Jan. 12, 2024 | 9:07 AMReading Time: 2 minutes
A Western Harvest mouse collected from the open space area on the eastern side of Mission Trails has tested positive for the potentially deadly hantavirus.
Deer Mice Test Positive for Hantavirus
Nov. 2, 2023 | 5:38 PMReading Time: 2 minutes
Three deer mice collected near Mount Laguna during routine monitoring on November 1 have tested positive for hantavirus.
Deer Mouse Tests Positive for Hantavirus
Sep. 5, 2023 | 11:06 AMReading Time: 2 minutes
A deer mouse collected near Mount Laguna Aug. 24 during routine monitoring has tested positive for hantavirus. Hantavirus in wild rodents is relatively common in San Diego County. This is the seventh routine detection of hantavirus in the region for calendar year 2023.