A breakdown of the @CDC Director’s Twitter video comment that:
“masks reduce the chance of infection by more than 80%.”
Her source is a sentence here from the CDC’s cloth mask study👇
There are 8 “small-number references” pertaining to this sentence which “prove the case”
“masks reduce the chance of infection by more than 80%.”
Her source is a sentence here from the CDC’s cloth mask study👇
There are 8 “small-number references” pertaining to this sentence which “prove the case”
Small-letter 5: masks stops droplets, not so good on aerosols:
Small-letter 6: $40 to view.
Small-letter 15: no aerosols mentioned
Small-letter 15: no aerosols mentioned
Small-letter 16: “….significant leakage jets that may present major hazards.”
Small letter 4: measured droplets.
Small letter 3: in press.
Small letter 9: non-aerosol results; “if aersol transmission is later determined to be a significant driver….then our findings may overestimate the effectiveness of face coverings.”
Small letter 9: non-aerosol results; “if aersol transmission is later determined to be a significant driver….then our findings may overestimate the effectiveness of face coverings.”
Small-letter 14: “…even N95 could not completely block the transmission of virus droplets/aerosols even when sealed.”
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