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It is notable, then, that all of the strategies effective in reducing the risk of long COVID might affect SARS-CoV-2 viral load during early infection, directly or indirectly. We therefore hypothesize that long COVID can be predicted by the peak and duration of the SARS-CoV-2 viral load—the area under the viral load curve during initial infection.

https://academic.oup.com/ofid/article/10/10/ofad466/7264811