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I've read a number of studies that suggest initial dose matters wrt to severity of covid infection. Which wouldn't be surprising as studies have shown that initial dose matters with the flu and SARS-I.
Assuming this is the case - people who catch covid from their housemates would seem to be much more at risk of a severe infection - given they're getting a maskless blast from their housemate for days.
Has anyone seen any studies to this effect? I can't find any. But I can't imagine how it's not the case - assuming initial dose matters.
Anecdotally everyone I know who's gotten it from their roommate or family member in the house, got a worse infection than the original infectee who got it from outside the house somewhere. But that's a sample size of like 5.
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