New virus associated with diarrhoea in neonates

Area of Science:

• Virology
• Neonatal Medicine
• Infectious Diseases

Background:

• An increase in acute diarrhea incidence was observed in neonatal nurseries in Melbourne starting December 1974.
• Four of the five affected hospitals experienced epidemics, alongside a rise in endemic diarrheal disease.

Purpose of the Study:

• To investigate the cause of increased acute diarrheal disease in neonates across five Melbourne metropolitan hospitals.
• To identify potential infectious agents responsible for sporadic and epidemic cases.

Main Methods:

• Faecal extracts from 148 neonatal patients were analyzed using electron microscopy.
• Samples were collected from five Melbourne metropolitan hospitals experiencing increased diarrhea incidence.

Main Results:

• "Duovirus" particles were detected in 82 out of 148 faecal extracts examined.
• The identified "duovirus" was present in samples from all five hospitals.
• No bacterial pathogens were isolated from the patient samples.

Conclusions:

• "Duovirus" is strongly implicated as a significant cause of both sporadic and epidemic acute diarrheal disease in neonates.
• The absence of a bacterial pathogen does not rule out an infectious etiology, particularly when sugar intolerance is present.
• Implementing appropriate infection control measures is essential to minimize the spread of this neonatal diarrheal disease.