Covid: Pfizer and Moderna vaccines give T-cell immunity against new variants

Immunity produced by white blood cells is ‘not substantially affected’ by mutated coronavirus variants, scientists have found.  Experts were concerned the current jabs might not work as well against the South African and Brazilian variants because they changed its shape. Studies found disease-fighting proteins called antibodies were less effective in the face of the new strains, … Read more

T-cell test is EIGHT TIMES better at detecting whether someone was infected with coronavirus

A new type of test may be more effective at determining whether someone already had coronavirus compared to widely-used antibody tests. The test looks for immune cells called T-cells, which are a type of white blood cell that binds to and kills viruses. New research from the manufacturer, Adaptive Biotechnologies, which is based in Seattle, found … Read more