San Diego County has confirmed its first hantavirus detection of 2025, marking a critical reminder of the health risks posed by rodent-borne diseases. The virus was detected in a wild deer mouse captured during routine monitoring in the rural community of Warner Springs, according to the County of San Diego Department of Environmental Health and Quality (DEHQ).
Hantavirus is a potentially deadly disease primarily spread through the droppings, urine, and saliva of infected rodents. While human cases are rare, the virus can cause severe respiratory issues, including Hantavirus Pulmonary Syndrome (HPS), which has a high mortality rate. The DEHQ emphasized that there have been no human infections reported in the county this year, but they urge residents to take precautions.
To minimize the risk of exposure, officials recommend sealing up homes to prevent rodent entry, promptly cleaning areas where rodent activity is detected, and avoiding direct contact with droppings or nesting materials. Using gloves and disinfectants when cleaning affected areas is strongly advised.
Routine surveillance like the one that uncovered this case is crucial in early detection and prevention of potential outbreaks. This discovery highlights the importance of maintaining public awareness about hantavirus, particularly in rural or rodent-prone areas.
San Diego County residents are encouraged to report any signs of rodent infestation to local authorities. As public health officials remain vigilant, this case serves as a timely reminder of the steps needed to safeguard the community against preventable diseases.
