Some nontrivial percentage of the time, though, the vaccine doesn't take, and this becomes more likely in immunocompromised people (e.g., the elderly). Those pe

Some nontrivial percentage of the time, though, the vaccine doesn't take, and this becomes more likely in immunocompromised people (e.g., the elderly). Those people might end up protected from ending up getting infected even though the vaccine won't end up helping them if the people they interact with are also vaccinated and had better luck. As for nobody at your place of employment getting vaccinated: these days that seems pretty surprising to me, but maybe it's a regional thing or something? My office brings in a nurse to do everybody at once.