Michigan also got hit pretty hard with covid, from what I can discern.It's not proof. An alternative explanation is that
benefit was reduced by low (non-N95) mask
quality, poor hygiene (eg, touching one's eyes).
I go with recommendations by trusted sources.
While my family here is statistically insignificant,Can face masks protect against COVID-19?
Face masks can help slow the spread of coronavirus disease 2019 (COVID-19). Learn about mask types, which masks to use and how to use them.www.mayoclinic.org
we took all the precautions, & never tested positive
for Covid 19.