last time I checked, the answer was "we don't know". There seems to be a >=8 months figure floating around now, though. https://www.cidrap.umn.edu/news-perspec

last time I checked, the answer was "we don't know". There seems to be a >=8 months figure floating around now, though. https://www.cidrap.umn.edu/news-perspective/2020/12/two-studies-find-covid-19-antibodies-last-8-months https://www.cidrap.umn.edu/news-perspective/2020/12/two-stud...