Some respiratory viral infections can be followed by weeks of persistent respiratory, cardiovascular, and functional symptoms, according to an analysis published in Respirology. The review, which included 13 studies involving 631,863 participants, found that influenza had the strongest evidence for long-term effects. In one cohort, 23% of adults reported persistent symptoms 12 weeks after influenza, while a separate claims study found 10% of patients remained symptomatic at 6 months. Postacute complications varied by virus, and …
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