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NEW STUDY: A Chinese study shows people infected with COVID-19 lose antibodies after only a few months.
A good summary article is here: https://www.cidrap.umn.edu/news-perspective/2020/06/chinese-study-antibodies-covid-19-patients-fade-quickly
This is observational and small but reflects both symptomatic & asymptomatic people.
If confirmed in further studies, it implies that we take prevention much more seriously until vaccines, prophylaxis & therapies advance.
Here is a link to an earlier study on how T-cells May add protection. All of these things will continually be studied and must be considered together. https://www.sciencemag.org/news/2020/05/t-cells-found-covid-19-patients-bode-well-long-term-immunity
The other thing being studies here is whether cross-immunity has and can be built from the common cold (another Coronavirus).
While no evidence yet, it could offer an explanation as to how some are more susceptible than others.
While no evidence yet, it could offer an explanation as to how some are more susceptible than others.