Prevnar 13 lags amid COVID-19 vaccine rollouts, but Pfizer sees a way to boost the franchise

Pfizer’s pneumococcal vaccine Prevnar 13 has long been the world's bestselling vaccine, but that's set to change in 2021 thanks to the company's own COVID-19 shot. As the COVID-19 vaccine rollout hits its stride, Pfizer's key Prevnar franchise is slumping.