A Better Way to Measure Immunity in Children
Some scientists believe that a clearer picture of Covid vaccine efficacy could have emerged sooner if investigators had tracked certain immune cells, not just antibodies.
Some scientists believe that a clearer picture of Covid vaccine efficacy could have emerged sooner if investigators had tracked certain immune cells, not just antibodies.
But prior infection does not guarantee protection from the virus, officials said, and Americans should still get vaccinated and boosted.
In a collection of laboratory and also human studies, British scientists have found that individuals …