Antigen
4:58
YouTubeHussain Biology
Antigen
An antigen (Ag) is a molecule or molecular structure, such as may be present at the outside of a pathogen, that can be bound to by an antigen-specific antibody (Ab) or B cell antigen receptor (BCR). The presence of antigens in the body normally triggers an immune response. The term "antigen" originally described a structural molecule that binds ...
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COVID-19 rapid antigen test Vaccine Effectiveness and Side Effects
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4.6K views · 126 reactions | The first big real-world study of the Pfizer/BioNTech vaccine to be independently reviewed shows the shot is 94% effective at preventing COVID-19, in a potentially landmark moment for countries desperate to end lockdowns and reopen economies https://reut.rs/3bDTDxd | Reuters | Facebook
1:48
4.6K views · 126 reactions | The first big real-world study of the Pfizer/BioNTech vaccine to be independently reviewed shows the shot is 94% effective at preventing COVID-19, in a potentially landmark moment for countries desperate to end lockdowns and reopen economies https://reut.rs/3bDTDxd | Reuters | Facebook
FacebookReuters
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