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COVID herd immunity may be "unachievable" after study suggests antibodies disappear after weeks [View all]
Coronavirus herd immunity may be 'unachievable' after study suggests antibodies disappear after weeks in some people
Fourteen percent of people who previously tested positive for antibodies tested negative just weeks later.
The study suggests people who experience mild symptoms do not have long-lasting protection.
"Immunity can be incomplete, it can be transitory, it can last for just a short time and then disappear," Raquel Yotti, the director of Spain's Carlos III Health Institute, said.
[snip]
[Ian] Jones [a professor of virology at the University of Reading] added: "Anyone who tests positive by antibody test should not assume they are protected. They may be, but it is not clear."
The study suggests people who experience mild symptoms do not have long-lasting protection.
"Immunity can be incomplete, it can be transitory, it can last for just a short time and then disappear," Raquel Yotti, the director of Spain's Carlos III Health Institute, said.
[snip]
[Ian] Jones [a professor of virology at the University of Reading] added: "Anyone who tests positive by antibody test should not assume they are protected. They may be, but it is not clear."
https://www.businessinsider.com/coronavirus-antibodies-study-herd-immunity-unachievable-spain-2020-7
What this also means is that a vaccine may/will not work.
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