Doses of the anti-viral drug Paxlovid are displayed in New York, Aug. 1, 2022. A study by Harvard researchers released on Jan. 26, 2024, found that Paxlovid was disproportionately given to patients with lower risk of severe infection. If it had been properly utilized, the authors concluded, more than 16,000 COVID-19 deaths could have been prevented.. (AP Photo/Stephanie Nano, File)