[BostonCard]

That is the most likely conclusion, though it also could have been that the instructor was less infectious at the time he or she taught her class than the index case.  That's the challenge with n of 1 cases, there's always a "just so" story that accounts for the observation.  That being said, I have no reason to doubt that the intense aerobic exercise was a factor in the superspreading event.

BC

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As an aside, over my lunch I participated in an indoor fitness class (by zoom, of course).  The "new normal", I guess.

BC

[BostonCard]

That is the most likely conclusion, though it also could have been that the instructor was less infectious at the time he or she taught her class than the index case.  That's the challenge with n of 1 cases, there's always a "just so" story that accounts for the observation.  That being said, I have no reason to doubt that the intense aerobic exercise was a factor in the superspreading event.

BC

---

As an aside, over my lunch I participated in an indoor fitness class (by zoom, of course).  The "new normal", I guess.

BC