claim: nasal-swab testing performed patients with low sars-cov-2 viral loads
evidence_1: these findings counsel caution in use of nasal testing in healthcare settings and contact-tracing efforts, as opposed to screening of asymptomatic, low-prevalence, low-risk populations.", "those with viral loads below 1,000 copies/ml, the majority in our cohort, exhibited low concordance (cohens kappa = 0.49); most of these would have been missed by nasal testing alone.", "to resolve this disagreement, we compared nasal and np specimens collected by healthcare workers in a cohort consisting of individuals clinically suspected of covid-19 and outpatients known to be sars-cov-2 rt-pcr positive undergoing follow-up."
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  )