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Volume 32, Number 8—August 2026

Research Letter

Hepatitis A Outbreak in Skilled Nursing Facility, Los Angeles County, California, USA, 2025

Mona T. YazdiComments to Author , Alicia H. Chang, Angela Wong, Christopher Asuncion, Bonnie Dao, and Prabhu P. Gounder
Author affiliation: Los Angeles County Department of Public Health, Los Angeles, California, USA

Main Article

Figure 1

Epidemic curve of hepatitis A cases associated with a skilled nursing facility outbreak in Los Angeles County, California, USA, 2025 (N = 5). We defined the exposure period as 50 days before symptom onset and until onset of infectious period; we defined the infectious period as 14 days before symptom onset to 7 days after jaundice onset (or 14 days after symptom onset if no jaundice).

Figure 1. Epidemic curve of hepatitis A cases associated with a skilled nursing facility outbreak in Los Angeles County, California, USA, 2025 (N = 5). We defined the exposure period as 50 days before symptom onset and until onset of infectious period; we defined the infectious period as 14 days before symptom onset to 7 days after jaundice onset (or 14 days after symptom onset if no jaundice).

Main Article

Page created: June 10, 2026
Page updated: July 13, 2026
Page reviewed: July 13, 2026
The conclusions, findings, and opinions expressed by authors contributing to this journal do not necessarily reflect the official position of the U.S. Department of Health and Human Services, the Public Health Service, the Centers for Disease Control and Prevention, or the authors' affiliated institutions. Use of trade names is for identification only and does not imply endorsement by any of the groups named above.
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