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Nosocomial calicivirus gastroenteritis in a pediatric hospital

At St. Göran's Children's Hospital (a tertiary center), we perform electron microscopy of feces in most cases of nosocomial gastroenteritis. From September 1987 through April 1992 we identified 32 episodes of calicivirus infection, 25 of which were nosocomial and, except for one outbreak, sporadic. Systematic study of the nosocomial outbreak of calcivirus gastroenteritis from November 1991 to January 1992, revealed calcivirus in the stools of 8 of 23 children with diarrhea and 0 of 10 without diarrhea. In 3 of 7 sampled after cessation of diarrhea, calicivirus excretion continued for 3 to 6 days. We found no calicivirus in 42 staff members or 9 members of infected patients' families. Nosocomial transmission of calicivirus can occur among infants.