Five key genes are linked with the most severe form of Covid-19, scientists said, in research that also pointed to several existing drugs that could be repurposed to treat people who risk getting critically ill with the pandemic disease.

A mounting U.S. death toll has tempered enthusiasm about a coming Covid-19 vaccine with 9/11-like fatalities projected every day for the months ahead, even with a rapid rollout of inoculations, which could start as soon as Dec. 14.

The U.S. Food and Drug Administration’s Vaccines and Related Biological Products Advisory Committee voted 17-4 to recommend Pfizer and BioNTech’s Covid-19 vaccine for Emergency Use Authorization (EUA) for individuals ages 16 years and older.

New York-based TG Therapeutics announced positive topline results from two global Phase III clinical trials, ULTIMATE I and II, of ublituximab in relapsing forms of multiple sclerosis (RMS).

The United States’ daily death toll from Covid-19 surpassed 3,000 for the first time, prompting pleas for Americans to scale back Christmas plans even with vaccines on the cusp of winning regulatory approval.

Moderna Inc. dosed the first participants in a mid-to-late stage study testing the company’s Covid-19 vaccine candidate in adolescents aged 12 to less than 18, and aims for data ahead of the 2021 school year.

FCB New York and FDA’s Center for Tobacco Products announced the launch of the next installment of “Little Lungs,” an effective smoking prevention campaign for teens that portrays a set of lungs stunted by teenage smoking.

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.

Health Canada on Dec. 9 approved the Covid-19 vaccine from Pfizer Inc. and BioNTech SE, clearing the way for shots to be delivered and administered across the country.

Economic relief and a vaccine drew nearer to reality to counter a coronavirus pandemic that has ravaged the U.S. economy and killed 286,487 people with year-end holiday gatherings expected to fuel another surge in infections.