Severe Covid-19 may trick the immune system into producing so-called autoantibodies that have the potential to eventually attack healthy tissue and cause inflammatory diseases, researchers warned in a paper published in Nature Communications. Another study suggests that the virus that causes Covid-19 may be getting better at traveling into the air

A potential vaccine from China’s Clover Biopharmaceuticals was 67 percent effective against Covid-19 of any degree of severity and 79 percent against the highly infectious Delta variant in a large trial, the company said on Sept. 22.

Eli Lilly said on Sept. 15 the U.S. government bought 388,000 additional doses of the company’s Covid-19 antibody therapy and Regeneron Pharmaceuticals said on Sept. 14 the U.S. government was buying 1.4 million additional doses of the Covid-19 antibody cocktail REGEN-COV., as infections surge due to the fast-spreading Delta variant.

Three U.S. studies suggest Covid-19 vaccines offer strong protection against hospitalization and death, even in the face of the highly transmissible Delta variant, but vaccine protection appears to be waning among older populations, especially among those 75 and older.

What is the key to a robust immunity against SARS-CoV-2? According to a study recently published in The New England Journal of Medicine, it could be a previous SARS infection—more specifically, the one that spread across 29 countries between 2002 and 2004—plus vaccination. 

In a summary of some recent studies on Covid-19, an arthritis drug cuts the death risk in high-risk patients and heart medications might help prevent Covid-19 blood clots.

President Joe Biden took aim on Sept. 9 at vaccine resistance in America, announcing policies requiring most federal employees to get Covid-19 vaccinations and pushing large employers to have their workers inoculated or tested weekly.

Heading into fall, with the Covid-19 pandemic surging again and researchers tracking new variants, there is plenty of news. BioSpace takes a look, including several research studies suggesting that some people have unusually strong immunity against Covid-19.

President Joe Biden on Sept. 9 will present a six-pronged strategy intended to fight the spread of the highly contagious coronavirus Delta variant and increase U.S. Covid-19 vaccinations, the White House said on Sept. 7.

As Covid-19 infections driven by the Delta variant continue to spike across much of the United States, stretching health care services to the limits, the White House is seeking $65 billion to lay the groundwork for future pandemic preparedness.