Michael Levitt has been saying this since the Diamond Princess event.
Scratch that - he hasn't been maintaining there's pre-existing immunity, rather asking the question to anyone who'd listen...he doesn't have a background in biology, but that's one of the few conclusions he could surmise from studying the data.
Scratch that - he hasn't been maintaining there's pre-existing immunity, rather asking the question to anyone who'd listen...he doesn't have a background in biology, but that's one of the few conclusions he could surmise from studying the data.