PERTH, Australia – Australia’s Therapeutic Goods Administration (TGA) has granted provisional approval to Pfizer Australia Pty Ltd. for its COVID-19 vaccine, branded Comirnaty, making it the first COVID-19 vaccine to receive approval in Australia.

LONDON – There is “a realistic possibility” that infection with the B 1.1.7 variant of SARS-CoV-2 is associated with a 30% to 40% increased risk of death compared to earlier variants of the virus, according to scientists on the U.K. government’s New and Emerging Respiratory Virus Threats Advisory Group. That conclusion is based on studies by three university groups, linking community PCR testing to mortality.

Merck & Co. Inc. dropped a bombshell Jan. 25, announcing that it was terminating its two COVID-19 vaccine programs, V-590 and V-591, because neither demonstrated convincing levels of efficacy in phase I trials. As a relatively late entrant to the COVID-19 vaccine race, Merck, of Kenilworth, N.J., was never a leading contender in the effort to bring safe and efficacious vaccines to market. Even so, the failure of these programs is a significant setback, given the company’s scale and experience as a global vaccine manufacturer.