The Los Angeles County Department of Public Health has announced an outbreak of hepatitis A following a significant increase in cases over the past year.

This declaration aims to raise awareness and encourage preventive measures to curb the spread of the virus.

In 2024, Los Angeles County reported 165 hepatitis A cases, a threefold increase from the 55 cases recorded in 2023.

As of early 2025, 29 additional cases have been confirmed, signaling a persistent public health challenge.

Hepatitis A is a highly contagious liver infection caused by the hepatitis A virus, primarily spread through the fecal-oral route.

The virus is present in the stool of infected individuals and can be transmitted via:

Close person-to-person contact

Consumption of contaminated food or water

Populations with limited access to sanitation, such as unhoused individuals, are particularly vulnerable due to challenges in maintaining hygiene practices like handwashing and accessing clean facilities.

To combat the outbreak, the Department of Public Health urges residents to adopt the following preventive measures:

The hepatitis A vaccine is safe, effective, and provides long-term protection. Residents are encouraged to verify their vaccination status and get vaccinated if needed.

Regular handwashing with soap and water, especially before preparing or eating food and after using the restroom, is critical to reducing transmission.

Dr. Muntu Davis, Los Angeles County Health Officer, emphasized the urgency of the situation: “The steady rise in hepatitis A cases underscores the need for immediate action to safeguard our community.

Vaccination is a simple yet powerful tool to protect yourself and others. Coupled with consistent handwashing, these steps are essential for halting the spread of this preventable disease.”