News ‘Silent spreaders’ of COVID-19: Kids who seem healthy may be more contagious than sick adults, study says August 20, 2020 Adrianna Rodriguez, USA TODAY Comments Off on ‘Silent spreaders’ of COVID-19: Kids who seem healthy may be more contagious than sick adults, study says Researchers at Massachusetts General Hospital and Mass General Hospital for Children found seemingly 'healthy' kids had more virus than sick adults.