title: Letter: Evidence for viral gastroenteritis.
mesh_terms: D001102:Arbovirus Infections; D001103:Arboviruses / Q000302:isolation & purification*; D001706:Biopsy; D002675:Child, Preschool; D004386:Duodenum / Q000382:microbiology; D005759:Gastroenteritis / Q000209:etiology* / Q000382:microbiology; D006801:Humans; D007413:Intestinal Mucosa / Q000382:microbiology; D008854:Microscopy, Electron