Nation Pfizer antiviral reduces hospitalization, death among high-risk people by 89%, study shows: COVID-19 updates December 14, 2021 Celina Tebor and Karen Weintraub, USA TODAY Comments Off on Pfizer antiviral reduces hospitalization, death among high-risk people by 89%, study shows: COVID-19 updates A study found that Pfizer's antiviral drug, Paxlovid, reduced hospitalization or death among high-risk people by 89%. More COVID-19 updates.