An organization that puts out a tweet (on immunity) that was, in the form it was written, totally void of any biological sense, doesn't rank much on my scale of worthiness.

On the seasonality: at a seminar on the epidemiology of this disease at my institution right today, the evidence on the impact of experimental factors was described as "inconsistent" but not enough to rule out one possibility or the other.

Ironically, a WHO staffer in Italy actually made a claim (or so the media said) about a "second wave" just two weeks ago.

I really don't understand why it is hard for many (not necessarily just the WHO) to say "we don't know".