Deadly Rat Disease Strikes RV Residents in Berkeley

Health officials in Berkeley have confirmed a tragic outbreak of leptospirosis linked to rat infestations, resulting in one fatality and one hospitalization. The affected individuals had been residing in an RV described as heavily infested with rats, located approximately one mile from the Harrison Street encampment. Both patients experienced delays in accessing medical care, which exacerbated their conditions.

The health department emphasized that these cases underscore the significant health risks associated with living in environments overrun by rats, particularly the leptospirosis bacteria. This disease can also pose a serious threat to dogs.

Concerns over leptospirosis have been ongoing, as two dogs at the Harrison Street encampment previously tested positive for the disease. In response, the city offered free vaccinations to dogs and removed substantial amounts of garbage. Current testing of rats in the area, including where the RV was parked, continues to show a high prevalence of the disease, exceeding normal urban California levels.

Consequently, Berkeley has shifted its focus to a citywide prevention strategy targeting high-risk areas like RVs and encampments. Leptospirosis is a bacterial disease typically spread via contaminated mud and water from infected rat urine, entering the body through mucous membranes. While often asymptomatic, it can cause flu-like symptoms and lead to severe illness if untreated. Antibiotic treatments are available for humans and pets, and a vaccine exists for dogs.