The crazy, convoluted, mixed up messaging from the CDC – it's been this way from the beginning of the pandemic until now – has taken yet another turn. Now the CDC is recommending masks not just for the unvaccinated but for the vaccinated too. This is supposedly because of the discovery that the variant known as Delta is making an end-run around the vaccines, causing not only infections but infectious spread.
So we have an odd situation developing. The layperson’s understanding of a vaccine is that it protects a person against infection, like measles or smallpox. In other words, you won’t get Covid, exactly as President Biden accidentally and apparently inaccurately said in a press conference last week. That is apparently untrue in this case. That realization seemed to dawn on people only a few weeks ago, as reports from Israel revealed that half the new infections listed were with people who had been fully vaccinated.