Adenoviridae Infections/epidemiology; Adenoviridae/isolation & purification; Adenovirus Infections, Human/epidemiology; Caliciviridae Infections/epidemiology; Enterovirus Infections/epidemiology; Gastroenteritis/epidemiology; Gastroenteritis/virology; Rotavirus Infections/epidemiology; Adenoviridae/genetics; Adenoviridae/ultrastructure; Child; Child, Preschool; Colorado/epidemiology; Coronavirus/isolation & purification; Coronavirus/ultrastructure; Disease Outbreaks; Feces/virology; Female; Gastroenteritis/etiology; Humans; Infant; Male; Microscopy, Electron; Multiplex Polymerase Chain Reaction; Norovirus/isolation & purification; Norovirus/ultrastructure; RNA Viruses/genetics; RNA Viruses/isolation & purification; RNA Viruses/ultrastructure; RNA, Viral/genetics; RNA, Viral/isolation & purification; Rotavirus/genetics; Rotavirus/isolation & purification; Sapovirus/isolation & purification; Sapovirus/ultrastructure; Time Factors; Virus Shedding

RT-PCR; epidemiology; immunocompromised; norovirus; pediatric; shedding