Fig. 2: Unadjusted mean in-school test positivity rates and testing density, county-level vaccination and incidence rates: Massachusetts, September 2021– June 2022. | Communications Medicine

Fig. 2: Unadjusted mean in-school test positivity rates and testing density, county-level vaccination and incidence rates: Massachusetts, September 2021– June 2022.

From: Impacts of testing and immunity acquired through vaccination and infection on covid-19 cases in Massachusetts elementary and secondary students

Fig. 2

Panel A: unadjusted means for total number of COVID-19 positive tests identified as part of the state-wide testing program (includes all test types). Panel B: Total number of COVID-19 tests performed over the course of the 2021-2022 academic year (includes all test types). Panel C: Test-to-stay positivity rates. Panel D: Pooled testing (surveillance) positivity rate. Panel E: County-level vaccination rate, presented as per 100,000 county residents. Panel F: County-level SARS-CoV-2 incidence rate per 100,000 county residents.

Back to article page