
COVID-19 (Coronavirus)
As of February 3, 2025, Cal/OSHA has sunset the COVID-19 standard. COVID-19 training, testing, and marking are no longer required. If you have any questions, contact safety@uci.edu.
Updated July 25, 2025
What is COVID-19?
COVID-19 is a highly contagious respiratory disease caused by the SARS-CoV-2 virus. It emerged in late 2019 and can cause symptoms ranging from mild, like fever and cough, to severe, including difficulty breathing and, in some cases, death. It spreads primarily through respiratory droplets and led to a global pandemic by March 2020. Following three years of public health interventions including masking, social distancing, and the development and dissemination of vaccines, the World Health Organization declared an end to the pandemic in May 2023.
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UCI EHS
949-824-6200
safety@uci.edu
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