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Re:Loss of smell could be a 'highly reliable indicator' of C... by nradov on Friday October 02, 2020 @06:41PM (#24667769)
The best evidence we have indicates that most recovered patients will retain a significant level of immunity for at least several years.

https://www.jimmunol.org/content/early/2020/09/03/jimmunol.2...

As with any pandemic there will be a small minority of outliers who experience symptomatic reinfections.

Re:Loss of smell could be a 'highly reliable indicator' of C... by dhimes on Saturday October 03, 2020 @08:52AM (#24671704)
The paper you cited doesn't supply evidence- according to the abstract it's their best guess based on experience with other coronaviruses.

The evidence is actually scant but there's a decent discussion of it in the Guardian article I linked below and the paper linked from it.