COVID-19 Cases Are Dropping Fast. Why?

“Four reasons: social distancing, seasonality, seroprevalence, and shots.”

(J. Harris: This is a readable, informative article. I’d add another reason cases are dropping: No one’s testing for Covid in many areas, including Texas.)

Experts Express Concern Over Airborne Spread of More Contagious Coronavirus

(J. Harris: Easy to read article makes you want to double mask with the mutants lurking about.)

Childhood Colds Do Not Prevent Coronavirus Infection, Study Finds

“The idea that having the snuffles a while back somehow protects you from SARS-CoV-2 infection has always left me cold, but it’s been a persistent urban legend throughout the pandemic,…Hopefully, this new paper will finally cool everyone down and put such thoughts into the freezer.”

(J. Harris: Good NYT summary of several articles. Having had lots of “colds” does not protect kids or adults from Covid infection. Several articles are reviewed.)



1. U.K. Gets Approval to Infect Healthy Volunteers in World’s First Coronavirus ‘Challenge Trial’ (Washington Post) Britain will become the first country to deliberately infect healthy volunteers with the coronavirus, now that the country’s ethics body has approved a “human challenge trial.”

The effort, funded by the British government, aims to accelerate scientific understanding of vaccines and treatments.

2. Scientists Call on C.D.C. to Set Air Standards for Workplaces, Now (New York Times) Nearly a year after scientists showed that the coronavirus can be inhaled in tiny droplets called aerosols that linger indoors in stagnant air, more than a dozen experts are calling on the Biden administration to take immediate action to limit airborne transmission of the virus in high-risk settings like meatpacking plants and prisons.


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