Outbreak description
The SARS-CoV-2 Omicron variant outbreak in Lu’an City in April 2022 had
reported 419 cases, including five individuals who did not live in
Lu’an. The outbreak lasted for 20 days and was the largest outbreak of
the COVID-19 epidemic ever recorded in Lu’an. A total of 358 individuals
had been vaccinated with at least one of the COVID-19 vaccines, and 66
individuals have never received any of the COVID-19 vaccines.