✏️ An expert explains the No. 1 way to reduce a COVID outbreak at your school
and it’s plausible that it could take as long as 30 days for a school to notice and react to a potential outbreak in a group.
That means that once one person is infected, the number of infected people will double every five days or so . Wait 30 days before dealing with the problem and you would have 16 people infected — that is, two to the power of four, where four is the number of doubling cycles in 30 days if you subtract eight days for weekends.Suppose we took half of the students and asked them to learn remotely, with the other half attending class in person.
Such mixing does undermine the potential benefits of rotation — but not by much. If there is an outbreak in one group of 250 students, then the probability of infecting a teacher is not very high. And that means the probability of an outbreak jumping between groups is also low. This is certainly true if the frequency of rotations is high.
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