predictors of severe symptomatic laboratory-negative sars-cov-2 reinfection
predictors of severe symptomatic laboratory-negative sars-cov-2 reinfection
conclusions to the best of our knowledge this is the first study evaluating disease outcomes in a large set of laboratory-positive cases of symptomatic sars-cov-2 reinfection and factors associated with illness severity was characterized.", "our results may contribute to the current knowledge of sars-cov-2 pathogenicity and to identify populations at increased risk of a poorer outcome after reinfection.", "we used risk ratios (rr) and 95% confidence intervals (ci) to evaluate predictors of severe (dyspnea requiring hospital admission) secondary sars-cov-2 infection.", 


































"in multiple analysis, factors associated with an increased risk of severe symptomatic sars-cov-2 reinfection were increasing age (rr per year = 1.007, 95% ci 1.003-1.010), comorbidities (namely obesity [rr = 1.12, 95% ci 1.01-1.24], asthma [rr = 1.26, 95% ci 1.06-1.50], type 2 diabetes mellitus [rr = 1.22, 95% ci 1.07 - 1.38] and previous severe laboratory- confirmed covid-19 (rr = 1.20, 95% ci 1.03-1.39).")