Reovirus-like particles in jejunal mucosa of a Japanese infant with acute infectious non-bacterial gastroenteritis.

In a two-month old Japanese boy with acute infectious non-bacterial gastroenteritis, reovirus-like particles were detected by electron microscopy in columnar epithelial cells, goblet cells and cells which infiltrated in the lamina propria of the upper jejunum which had been taken by peroral biopsy 90 hr after the onset of the illness.