Record Number of Rabid Bats Found in Los Angeles County

Los Angeles County is experiencing a record-breaking number of rabid bats, with officials urging the public to exercise caution due to an increased risk of rabies transmission. This year, 76 rabid bats have been detected within the county, surpassing the previous record of 69 set last year. Rabies is a viral disease that attacks the central nervous system and is almost always fatal in both animals and humans once symptoms manifest.

Health officials confirmed the first rabid raccoon sighting in Los Angeles County in over five decades. The raccoon was found in the affluent community of Westlake Village and tested positive for a strain of rabies commonly carried by bats in the area, suggesting it was likely bitten by an infected bat. A dog that encountered the raccoon and four people at a nearby worksite received immediate treatment for potential rabies exposure.

The increase in rabies cases among bats in Los Angeles County began in January. The first infected bat was discovered alive on the ground in a backyard in La Cañada Flintridge. Since then, an average of one rabid bat per month has been found in various locations across the county, including homes, swimming pools, driveways, and public spaces. Many of these bats were found by pets, leading to emergency treatments for potential exposure.

Rabies can be transmitted through the saliva of an infected animal, typically via a bite or scratch. Even minor scratches from a bat's small teeth can transmit the virus. Symptoms in humans usually begin with fever, weakness, and headache, potentially appearing days or weeks after exposure. As the disease progresses, it can lead to neurological issues such as anxiety, agitation, unusual behavior, hallucinations, and difficulty swallowing. Once these advanced symptoms appear, rabies is no longer treatable.

Officials noted that the majority of the rabid bats have been concentrated in the Santa Clarita Valley, a suburban area in northern Los Angeles County. They suspect that the virus may be circulating more intensely within the local bat population there. County officials are advising residents not to approach or handle bats, whether they appear sick or healthy. If a bat is found indoors or in an area accessible to pets, residents are urged to contain it safely and contact animal control immediately for testing.

Los Angeles County Board Chair and First District Supervisor Hilda Solis emphasized the importance of pet owners keeping their animals away from wildlife and ensuring their rabies vaccinations are up to date. While the exact cause of the record surge in rabies cases remains undetermined, wildlife experts estimate that nearly one in five bats tested annually are found to be positive for the rabies virus. The LA County Department of Public Health stated that if a bat tests negative for rabies, the risk of exposure to humans and pets can be ruled out.