A COVID-19 outbreak at an overnight high-school retreat likely began with a single student who had received a negative test result before arriving and led to 116 cases among attendees.
Milwaukee Journal Sentinel, The Post-Crescent
Thu, 10/29/2020 - 12:40pm
A COVID-19 outbreak at an overnight high-school retreat likely began with a single student who had received a negative test result before arriving and led to 116 cases among attendees.