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> But Britton noted that there are no clear instances of double infections so far, which suggests that this virus creates immunity for at least some meaningful length of time, as most viruses do.

A paragraph below in the article.

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I linked a clear instance of exactly that, an article written this week by a doctor whose patient contracted the virus twice in a short period, with references to other examples. Further, the claim that most viruses create immunity for a meaningful length of time is questionable.

> repeat infections in a short period are a feature of many viruses, including other coronaviruses

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