Slow DecreaseWith older people and health-care workers among the priority groups in the vaccine drive, a decrease in the number of deaths and hospitalizations will likely be the first sign the inoculations are having an impact.
But with little known about how well the shots might prevent transmission, it could take much longer to bring down infection rates.“The numbers of deaths should start to decrease slowly as the number vaccinated increases," said Graham Medley, a professor of infectious disease modeling at the London School of Hygiene and Tropical Medicine and a member of the U.K.
government’s Covid-19 advisory panel. But “if the vaccines do not stop transmission, then we will not see the numbers of infections change much."With more.