FILE PHOTO: Convalescent plasma samples in vials are seen before being tested for COVID-19 antibodies at the Bloodworks Northwest Laboratory during the coronavirus disease (COVID-19) outbreak in Renton, Washington, U.S. September 9, 2020. Picture taken September 9, 2020. REUTERS/Lindsey Wasson/File Photo
LONDON (Reuters) - Growing evidence that COVID-19 antibody levels can wane swiftly after someone is infected is not necessarily bad news for immunity, experts said on Thursday, and does not mean protection offered by coronavirus vaccines will be weak or short-lived.
Specialists in immunology and viruses warned against reading too much into studies of antibody levels in the blood of people previously infected with COVID-19, cautioning that antibody readings do not translate directly into levels of protective immunity.
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