The CEOs of Pfizer and Moderna say they think boosters will be needed within a year of immunization, potentially as early as September.
But independent researchers have a different take.
The CEOs of Pfizer and Moderna say they think boosters will be needed within a year of immunization, potentially as early as September.
But independent researchers have a different take.
There is some potentially very good news about how long immunity will last after getting the Pfizer or Moderna COVID-19 vaccines...
The trial, which aims to recruit thousands of participants, will look at several different COVID-19 shots - some of which are..