Good science is not about what is easy. That said, even if research involving longer-lasting immune responses is more difficult and costly, which limits how mu

Good science is not about what is easy. That said, even if research involving longer-lasting immune responses is more difficult and costly, which limits how much of it we do compared to simple studies on antibodies, I still find it curious that so many experts seem to be expressing surprise at findings totally congruent with basic knowledge about immunity.