Elevated procalcitonin levels have been associated with bacterial infection in children. Observational studies reported high procalcitonin values in COVID-19. Data on bacterial coinfections in pediatric COVID-19 is sparse; small studies suggest a low coinfection rate. In this study, the authors aimed to quantify the positive predictive value (PPV) of procalcitonin in identifying bacterial infection in children with and without COVID-19.
