3 ms·
> Are there any credible studies that say that infection doesn't confer immunity? Of course! Economic studies said that vaccine manufacturers might not make as
by unanswered 6y ago
> Are there any credible studies that say that infection doesn't confer immunity?
Of course! Economic studies said that vaccine manufacturers might not make as much of their investment back if infection confers immunity, so we can conclude that infection doesn't confer immunity.