Astrovirus gastroenteritis.
D002648:Child; D002675:Child, Preschool; D003428:Cross Infection / Q000209:etiology; D005243:Feces / Q000382:microbiology; D005759:Gastroenteritis / Q000175:diagnosis / Q000209:etiology*; D006801:Humans; D007223:Infant; D001257:Mamastrovirus / Q000302:isolation & purification; D008854:Microscopy, Electron; D014777:Virus Diseases / Q000175:diagnosis