How Common is Long COVID in Adults?

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1. You are a member of the healthcare team advising a large family practice about recognition, prevention, and management of long COVID (PASC). On the basis of the RECOVER prospective observational cohort study by Thaweethai and colleagues, which one of the following statements about a definition of PASC and PASC frequencies across cohorts, vaccination status, and number of infections is correct?
   Among participants with PASC, the most common symptom was loss of sense of smell
   Among participants first infected when Omicron was dominant, 10% were PASC-positive at 6 months
   Participants who were unvaccinated or infected before Omicron became dominant variant were less likely to have PASC and to have more severe PASC
   In the Omicron cohorts, the estimated proportion of PASC positivity did not differ on the basis of the number of infections
2. According to the RECOVER prospective observational cohort study by Thaweethai and colleagues, which one of the following statements about clinical and public health implications of a definition of PASC and PASC frequencies across cohorts, vaccination status, and number of infections is correct?
   Long-term symptoms associated with SARS-CoV-2 infection were mostly limited to the respiratory tract
   PASC frequency did not differ based on vaccination status
   A framework to identify PASC cases based on symptoms is a first step to defining PASC as a new condition
   The study identified risk factors for long COVID