When most Americans showed up to get their first dose of an mRNA vaccine, they were sternly warned that they must schedule a second dose within a month. In my case, I politely explained that I would come back for my second dose at 3 months. The scheduler got flustered and treated me like I was a fugitive of the law. But a growing body of evidence over the last several months has shown that a longer interval provides better immunity in the long-term. ...Based on the thinking at the time, the short interval may have made sense. But some...
