A roundup of some of the latest scientific studies on the novel coronavirus includes research on whether a childhood vaccine may help prevent severe Covid-19 and whether cigarette smoke increases cell vulnerability to Covid-19.

Novartis inked an exclusive worldwide license and collaboration deal with Australia-based Mesoblast to develop, commercialize and manufacture remestemcel-L for acute respiratory distress syndrome (ARDS), including when it is linked to Covid-19.

The U.S. death toll from Covid-19 surpassed a grim new milestone of 250,000 lives lost as New York City’s public school system – the nation’s largest – called a halt to in-classroom instruction, citing a jump in coronavirus infection rates.

The U.S. Food and Drug Administration will make public reviews of all data and information regarding the emergency use authorization (EUA) granted to Covid-19 drugs and vaccines.

Several U.S. governors, from the coastal states of New Jersey and California to the heartland of Iowa and Ohio, acted to restrict gatherings and boost face-coverings in confronting a coronavirus surge they warned is out of control.

The city of Philadelphia will ban indoor gatherings altogether and the nearby state of New Jersey will strictly limit their size as U.S. officials struggle to slow a Covid-19 surge that could overwhelm hospitals and kill thousands.

Bristol Myers Squibb said the U.S. health regulator deferred a decision on an experimental blood cancer therapy that the company acquired in the $74 billion buyout of Celgene due to coronavirus-related travel restrictions.

The United States recorded more than 1 million new Covid-19 cases in the past week as new infections rose in every state except for Hawaii, according to a Reuters analysis of state and county reports.

The new coronavirus was circulating in Italy during September 2019, a study by the National Cancer Institute (INT) of the Italian city of Milan shows, signaling that it might have spread beyond China earlier than believed.

The number of coronavirus cases in the United States crossed the 11 million mark, according to a Reuters tally, as the third wave of Covid-19 infections surged across the country.