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Old 03-22-2020, 12:23 PM
Manda JO is online now
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Join Date: Jul 1999
Posts: 12,095
I don't think it's a yes/no question, either. I think with any viral infection, there's always % of people who don't develop immunity for whatever reason. This is one of the reasons universal vaccination is important--herd immunity means that the % of people who could still get measles never finds out. So a few people getting re-infected doesn't mean there is no acquired immunity for anyone. The fact that it's just been a few seems to imply the opposite.