Martin Kulldorff on Twitter: ""All schools showed low transmission, for which the report credited the only unstudied pillar, the masking policy. Applied everywhere, there was no control group. The researchers might as well have attributed the low Covid rate in schools to wearing shoes" https://t.co/zfB2eCeUhY"

@MartinKulldorff

Professor Harvard Medical School. Disease surveillance methods. Infectious disease outbreaks. Vaccine safety. Free SaTScan, TreeScan and RSequential software.

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1. Tonnie Lubbers - NL = MY LAND‏ @TonnieLubbers Jul 9
  Replying to @MartinKulldorff
  
  https://www.youtube.com/watch?v=Jtc-_0tkeog …
  
  1 like
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1. Oliver $TXL Astronaut‏ @oliveropitz Jul 9
  Replying to @MartinKulldorff
  
  3 likes
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1. April Heine‏ @april_heine Jul 9
  Replying to @MartinKulldorff
  
  These kids are going to have social lives with each other (unmasked) and they will blame transmission on schools. Grade school kids hang out with kids in their class.
  
  1 reply 3 likes
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1. Vincent‏ @activist_hedge Jul 9
  Replying to @MartinKulldorff
  
  Astounding how so many professionals fail to understand how to test hypotheses!
  
  8 likes
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1. Lori Baker‏ @LoriBaker7 Jul 9
  Replying to @MartinKulldorff
  
  My kid’s school was mask optional. WHERE WERE THE RESEARCHERS? Nobody really wanted to know the truth. Even with periods of high community spread, the kids at school were fine.
  
  1 reply 1 retweet 26 likes
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1. Michele Capobianco‏ @Capobianco2005C Jul 9
  Replying to @MartinKulldorff
  
  Exactly the kind of article and statement you'd expect to be cited by a responsible #scientist to contribute to a serious and informed investigation about the relative role of #schools and #students in the spread of a virus!
  
  1 retweet 1 like
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1. P. Jeffrey Ungar, PhD‏ @pjungar Jul 13
  Replying to @MartinKulldorff
  
  P. Jeffrey Ungar, PhD Retweeted CA Public Health
  
  And now California says they will require masks for attending school K-12 this fall, although there was enough uproar they will likely back off to a more weaselly positionhttps://twitter.com/CAPublicHealth/status/1414772859767910407?s=20 …
  
  P. Jeffrey Ungar, PhD added,
  
  CA Public HealthVerified account @CAPublicHealth
  
  UPDATE: California’s school guidance will be clarified regarding masking enforcement, recognizing local schools’ experience in keeping students and educators safe while ensuring schools fully reopen for in-person instruction.
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