US to study whether longer Paxlovid course needed to combat COVID-19 reinfections May 18, 2022 Source: US to study whether longer Paxlovid course needed to combat COVID-19 reinfections Category: World Updated: May 18, 2022 at 7:35 pm Tags: US ◀ Florence bar fined €1,000 after police called over ‘expensive’ coffee 2023: Osinbajo meets Niger APC delegates behind closed doors in Minna ▶