You say this is necessary, the author says it's not. Why should I believe you (and same question for him)? Has the argument about the risk of reinfection been evaluated in the medical field?
They also taught us that vaccines are a good thing, yet plenty of people seem to be questioning that as well these days. Reading the replies here feels very like some of the smart sounding yet ignorant comments that some antivaccers make. :/
Incredibly weak article, IMO, regardless of the merits of what he's saying.