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The WHO just updated its page on how COVID-19 transmits. Those few sentences on aerosols represent one of the most crucial scientific advances of the pandemic. My NYT piece on

Before this gets out of hand... The first two weeks after a vaccine will include pre-vaccine infections PLUS the immune system takes some time. So "one-dose efficacy" can't be calculated

Some charts from the UK where deaths are down by 99%. They have the NHS and high vaccine take-up. Their expert committee recommended delaying boosters to expand coverage. They also

Before this gets out of hand. "Distance doesn't matter" IS NOT what "it's airborne" or primarily aerosol-transmitted means or implies, and the headline is not reflecting correctly a modeling paper

To understand why this is encouraging vaccine news, note that this is a *cluster* (overdispersed pathogen) *among the elderly* (vulnerable population) *who live together* (allows high attack rate). So way

Incredible New Zealand study on a mystery transmission in a quarantine hotel. For a while, a garbage can was suspected—one of the very, very few known suspected cases of fomite

If anyone is going to write about the latest Israel/variant study, I suggest noting: this informative thread by one of the co-authors; that it's actually excellent news; and that vaccine

CNN article on how to safely fly claims that 90% vaccine efficacy means that for every million who fly, we could have 100,000 infections. NO NO NO. That’s not what

Read and weep how the Skagit choir superspreading outbreak, first in the US, was ignored or explained away as maybe fomites or contact—a theory that required contortions that'd make epicycles

Trump was incompetent at his brand of authoritarianism, and he lost. But this isn't a triumph: the Democrats lost almost everything else. Make no mistake, about what's coming: The next

Wait, where is cancel culture? To say Sacha Baron Cohen's earlier film was racist and inexcusably exploitative is an understatement. It was cruel. He went to a dirt poor village

Did you know that *study after study* finds most people don't seem to transmit COVID at all? That a small percent is responsible for almost all infections? That R is