Το ξαναποστάρω εδώ, περί ανοσίας ο λόγος
https://www.weforum.org/agenda/2020/10/ ... -covid-19/Το άρθρο
https://www.cell.com/immunity/fulltext/ ... all%3Dtrue Η έρευνα
Και απόσπασμα από το άρθρο
“Whether antibodies provide lasting protection against SARS-CoV-2 has been one of the most difficult questions to answer,” says coauthor Michael D. Dake, senior vice president of University of Arizona Health Sciences. “This research not only has given us the ability to accurately test for antibodies against COVID-19, but also has armed us with the knowledge that lasting immunity is a reality.”
Earlier studies extrapolated antibody production from initial infections and suggested antibody levels drop quickly after infection, providing only short-term immunity. Bhattacharya believes those conclusions focused on short-lived plasma cells and failed to take into account long-lived plasma cells and the high-affinity antibodies they produce.
“The latest time-points we tracked in infected individuals were past seven months, so that is the longest period of time we can confirm immunity lasts,” Bhattacharya says. “That said, we know that people who were infected with the first SARS coronavirus, which is the most similar virus to SARS-CoV-2, are still seeing immunity 17 years after infection. If SARS-CoV-2 is anything like the first one, we expect antibodies to last at least two years, and it would be unlikely for anything much shorter.”
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