San Diego

San Diego Public Health Officials Urge Vaccinations Amid Rise in Hepatitis A and Mpox Cases

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Published on November 09, 2025
San Diego Public Health Officials Urge Vaccinations Amid Rise in Hepatitis A and Mpox CasesSource: Photo by Mathurin NAPOLY / matnapo on Unsplash

As cases of Hepatitis A and Mpox continue to rise throughout the region, San Diego County Public Health officials are strongly advocating for vaccinations to combat these infections. In a push to curb the spread, officials have reported a concerning uptick in illnesses with three recent cases of Hepatitis A and 14 new instances of Mpox surfacing in just the last three months. The affected individuals were unvaccinated; two of the Hepatitis A cases resulted in hospitalization, demonstrating the virus's potential severity.

It's never been more important to swiftly get vaccinated, especially since Hepatitis A can be prevented even if the vaccine is administered up to 14 days after exposure to the virus. Sayone Thihalolipavan, M.D., M.P.H., County public health officer, highlighted in a statement that "the hepatitis A vaccine can prevent someone from getting sick even 14 days after exposure to the virus." The vaccine is recommended for everyone starting at 12 months of age and is readily available without cost at County public health centers.

The risk profile for Hepatitis A includes individuals experiencing homelessness, illicit drug users, men who have sex with men and with multiple partners, and international travelers. Beyond vaccination, officials are also encouraging good hygiene practices as essential preventative measures. Hepatitis A, a highly contagious liver infection, can be transmitted through contaminated food and water or through sexual and close contact. Its symptoms can range from a mild illness lasting a few weeks to a serious condition unfolding over several months.

Similarly, the JYNNEOS vaccine is critical to protect against Mpox, a virus that spreads through close physical contact. With the first dose in arms, it's recommended to not delay and get the second dose 28 days later for full protection. According to health authorities, other preventive strategies include avoiding touch with rash or blister-infested skin and washing hands often. If exposure to Mpox is suspected, the JYNNEOS vaccine can still be effective if given within 14 days of contact.

For more information or inquiries about vaccination against Hepatitis A or Mpox, contacting 2-1-1 or visiting the County of San Diego sexual health clinics is encouraged. Vaccinations are offered at no cost at North Coastal, Central, and South Public Health Center locations. Officials also offer a text update service for weekly Mpox information, inviting residents to text COSD MPOX to 468-311 to stay informed.