claim: detection of sars-cov-2 nucleocapsid antigen from serum can aid in timing of covid-19 clearance.
evidence_1: specific igm antibodies to sars- cov-2 may be detectable in covid-19 patients during the symptomatic phase of the disease.", "--- qualitative detection of high affinity antibodies to sars-cov-2 nucleocapsid (n) protein, the virus that causes covid-19, to aid in identifying individuals with an adaptive immune response to sars-cov-2, indicating recent or prior infection.", "the combination of simultaneous sars-cov-2 antigen and antibody testing appeared to provide useful information for the timing of covid-19.", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "detection of sars-cov-2 n-antigen in blood during acute covid-19 provides a sensitive new marker and new testing alternatives, clinical microbiology and infection , 2020].", "our results suggest that sars-cov-2 n-antigenemia may be used as a diagnostic marker in acute covid-19.")