Pfizer and AstraZeneca Covid vaccine antibody count start to wane after six weeks - study

AN ANTIBODY is a protein produced by the body's immune system when it detects a harmful virus. Some studies have suggested vaccines that trigger fewer antibodies are less effective at protecting against COVID-19. Researchers have found that only six weeks after complete vaccination with Pfizer and AstraZeneca shots, antibody levels start to wane.
Source: Daily Express - Health - Category: Consumer Health News Source Type: news