Likely superspreader events.

If the event doesn't even follow the minimum CDC guidelines, you should expect it to be a superspreader.

A large gathering should at a minimum specifically ask people who are sick with covid or flu to stay home instead, or at least strongly recommend masking for anyone who is currently unwell. This is the minimum, to adhere to the recommended guidance of the CDC. That’s the minimum. Less precaution will likely precipitate an event becoming a superspreader. www.cdc.gov/respiratory-viruses/prevention/precautions-when-sick.html

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