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Ryan Hisner
LongDesertTrain
1/ Is the recent drop in US Covid cases due to an increased percentage of the population having immunity from previous infection or is it due to behavioral changes? In
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1/ So I found out this garbage meta-analysis is apparently being shared all over the place. I decided to take a look at the studies they cited as evidence that
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The worst-case scenario, while unlikely, is plausible & terrifying: rampant reinfection, increased disease severity (no sign yet but higher viral loads suggest the possibility), & greatly reduced vaccine efficacy against
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1/ Thanks to help from @Poppendieck & @CorsIAQ, I've used my @AranetIoT CO2 meter to estimate the # of air changes per hour (ACH) in my classroom. CO2 builds up
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