Commentary

Masks not only are pretty useless, they create feelings that aren't good for wearer or perceiver.

A lot of interesting research, on antigen testing, heterogenous population immunity models, airborne transmission and other topics.

Basically zero risk of a serious CV-19 case among college students.

More articles and research summaries.

Little new research leads me down a dangerous path of speculation.

Deaths by actual date of death shows a different epidemic.

Deaths among children are very, very rare.

A few weekend summaries.

Why weren't we told this earlier, some masks may actually facilitate transmission. Shocking, just shocking.

More research supports not treating tests with cycle number above 35 as a positive.

Some of the usual topics covered in the latest round of research summaries, plus comments on the President's infection.

Two meta-reviews on proportion of asymptomatic cases and viral loads.

A few more research summaries, including testing, masks, antibodies, etc.

More on cross-reactivity, testing and schools.

The research continues to suggest the pre-existing immune response is responsible for the wide prevalence of asymptomatic infections, and a couple of other summaries.