Stephen Hahn, the Commissioner of the U.S. Food and Drug Administration under former President Donald Trump, took on a new role as chief medical officer of a new health security initiative launched by Flagship Pioneering, a life sciences venture firm that incubates and curates biopharma companies.

The U.S. Food and Drug Administration warned health care personnel not to make any changes to the dosing of Covid-19 vaccines and that doing so would place the public health at risk and undermine “the historic vaccination effort to protect the population.”

Moderna, syringe needle

Moderna Inc.’s coronavirus vaccine mRNA-1273 became the second to receive emergency use authorization (EUA) from the U.S. Food and Drug Administration, welcome news to a nation with a staggering Covid-19 death toll of more than 307,000 lives lost.

A panel of outside advisers to the U.S. Food and Drug Administration overwhelmingly endorsed emergency use of Moderna Inc.’s coronavirus vaccine, virtually assuring a second option for protecting against Covid-19 for a pandemic-ravaged nation.

The U.S. Food and Drug Administration authorized emergency use of the first over-the-counter Covid-19 antigen test, which can be used at home.

A panel of outside advisers to the U.S. Food and Drug Administration is meeting on Dec. 10 to weigh whether to recommend that the regulatory agency authorize Pfizer’s coronavirus vaccine for emergency use, one of the last steps before vaccinations could begin.