FDA authorizes omicron-targeting vaccines as preferred COVID booster shots
By
Alicia Lasek
Sep 01, 2022
The FDA has authorized new, bivalent versions of Pfizer’s and Moderna’s COVID-19 vaccines to be used as booster shots. At the same time, the original monovalent versions are no longer authorized as...
Omicron renders Pfizer vaccine less effective; variant surge to hit U.S. by January
By
Alicia Lasek
Dec 15, 2021
The vaccine is less able to prevent infection, but retains 70% protection against hospitalization, a new study shows. The news comes as federal health officials warn that omicron is spreading rapidly in...
Two years into pandemic, we’re better prepared to fight off virus variants
By
Alicia Lasek
Dec 02, 2021
Despite the threat of the quickly spreading and highly mutated omicron coronavirus variant — which has just landed in the U.S. — we are safer than we were before the pandemic, some experts say.