On October 20, 2021, the US Food and Drug Administration (FDA) updated the emergency use authorizations for COVID-19 vaccines to allow for the use of a single booster dose for those in eligible populations. On November 19, 2021, the FDA expanded eligibility for booster doses, and now...

Last year’s holiday season marked the biggest surge of COVID-19 cases so far in the US – from September 2020 to January 2021. Confirmed new COVID cases went from an average of around 36,000 per day in September 2020 to a peak of more than 250,000...