MSNBC science contributor and Pulitzer Prize winning journalist Laurie Garrett describes the rise in transmissibility with the new covid variants and the different efficacies among the vaccines. Aired on 01/25/2021.
MSNBC science contributor and Pulitzer Prize winning journalist Laurie Garrett describes the rise in transmissibility with the new covid variants and the different efficacies among the vaccines. Aired on 01/25/2021.