This preprint says that scientists have seen good results of a multi-coronavirus vaccine, working against SARS-CoV-1, COVID Classic, B.1.1.7, B.1.351, and bat coronaviruses!
From this preprint, 2% of the people with COVID-19 carry 90% of the virions!
This preprint is from August, but I just noticed it. It says that COVID-19 cases go up when the humidity goes down.
This long and detailed article says that there have been reports of menstruational irregularities and discusses the science of what is likely happening. Spoiler: it appears to be a temporary affect and only a PITA, not dangerous. (NB: there have been studies on fertility, and fertility is not affected by the vaccines.) If you have irregularities, please report it to your doctor just so that more data on women goes into the database, but don’t worry about it.
This article points out that people with lymphedema might want to get vaxxed in the thigh instead of the arm.