https://www.cnn.com/2021/06/10/opinions/covid-19-delta-variant-us-holtgrave/index.html

This JAMA article discusses the timing of booster shots and the threat of mutations. https://jamanetwork.com/journals/jama/fullarticle/2777785

https://www.latimes.com/science/story/2021-02-23/california-homegrown-coronavirus-strain-looks-increasingly-transmissible-and-dangerous

Cloth masks are better than nothing, but they were supposed to be a stopgap measure. — Read on http://www.theatlantic.com/health/archive/2021/01/why-arent-we-wearing-better-masks/617656/

Two drugs for arthritis prove strikingly effective — Read on http://www.economist.com/science-and-technology/2021/01/07/another-life-saving-treatment-is-found-for-covid-19

This whole Twitter conversation is fascinating. Observational study examined 190,000+ patients from 50 states. Found higher levels of vitamin D were strongly associated with lower rates of testing positive for Covid, ”a relationship that persists across latitudes, races/ethnicities, both sexes & ages.” Observational study examined 190,000+ patients from 50 states. Found higher levels of vitamin […]

Three months after first testing positive for coronavirus, Jordan Josey, 29, tested positive again. His second case of Covid-19 wrecked him for four weeks. Cases like his are rare; antibodies may only last for three months, according to the CDC. — Read on http://www.cnn.com/2020/10/05/health/reinfection-covid-19-survivor-wellness/index.html See also – Dutch woman dies after getting Covid-19 twice: https://www.cnn.com/2020/10/13/europe/covid-19-dutch-woman-reinfection-death-intl/index.html

Scientists from Britain’s University of Oxford have developed a rapid Covid-19 test able to identify the coronavirus in less than five minutes, researchers said on Thursday, adding it could be used in mass testing at airports and businesses. — Read on http://www.cnbc.com/2020/10/15/oxford-scientists-develop-5-minute-covid-19-antigen-test.html