Authors
Rudy Patrick, Katie Lee, Melody Kuan, Melany Chan, Sara Y Tartof, Cameron Stainken, Shua J Chai, Ellora Karmarkar, Matt Feaster
Published in
MMWR. Morbidity and mortality weekly report. Volume 75. Issue 26. Pages 337-342. Jul 09, 2026. Epub Jul 09, 2026.
Abstract
The Eaton wildfire burned during January 7-31, 2025, displacing approximately 100,000 residents, destroying 9,419 structures, and resulting in the deaths of 19 residents of the greater Pasadena, California, area. An evacuation shelter opened on January 7. On January 13, the Pasadena Public Health Department (PPHD) received reports of acute gastrointestinal illness, COVID-19, and influenza cases among shelter residents. An outbreak response was initiated, which included enhanced surveillance and improved infection prevention and control (IPC) measures. On January 18, additional assistance was requested from the California Department of Public Health (CDPH). During January 7-February 16 shelter operations, enhanced surveillance implemented in response to the outbreak identified 104 cases of norovirus, 56 of COVID-19, 29 of influenza, and 30 of nonspecified respiratory illness among residents and staff members. Reported norovirus, COVID-19, and influenza cases decreased sharply after January 22. The last case of reported illness was a COVID-19 case on February 6. Rapid implementation of isolation and IPC protocols and interagency communication were temporally associated with declines in reported cases. This response highlights the importance of ongoing adherence to and coordination of IPC measures for outbreak mitigation to protect the health of residents and staff members in shelters established in response to public health emergencies or disasters.
PMID:
42424166
Bibliographic data and abstract were imported from PubMed on 10 Jul 2026.
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