claim: sars-cov-2 elicits robust adaptive immune responses because of disease severity
evidence_1: overall, the majority of patients had robust adaptive immune responses, regardless of disease severity.", "sars-cov-2 specific cd8+ t-cell responses were clear and quantifiable in 90% of hla-a2+ individuals.", "we investigated the breadth and potency of antibody-, and t-cell immune responses, in 203 recovered sars-cov-2 infected patients who presented with asymptomatic to severe infections.", "these data support the possibility of achieving protective immunity through natural infection and bode well for the prospects of inducing immunological memory through vaccination.", 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  "to understand the immunological signature of sars-cov-2 infections and aid the search for treatments and vaccines, comprehensive characterization of adaptive immune responses towards sars-cov-2 is needed.")