I know two shots is considered fully vaccinated, but I'm trying to find data on the effectiveness of a single shot, specifically of Pfizer, against hospitalization or death. I may be misreading certain articles online, but it seems to indicate when they talk about the vaccine's efficacy after 1or both shots, it's referring to getting covid with symptoms at all once vaccinated? Is that right? In other words, if I read that the first shot is 40% effective against the Delta variant, is that saying it's 40% effective at preventing me from getting Covid at all? Or is it just 40% effective against hospitalization and/or death? In a few cases, some of the studies seem to be in the 60s to 70s age groups. Would it be likely that the vaccine effectiveness of even just the first shot might be greater for those in their 30s or 40s?
I know everyone will say just get the second shot if you've already had the first, but for people that had a poor reaction to the first shot, I'm wondering how much protection they might have against hospitalization, which I think is what most people are truly concerned about.
I know everyone will say just get the second shot if you've already had the first, but for people that had a poor reaction to the first shot, I'm wondering how much protection they might have against hospitalization, which I think is what most people are truly concerned about.