Abstract
A small outbreak of S. typhimurium infection in a premature nursery is described. The infection was introduced by a child, presumably infected at birth, and was then spread to 4 children in adjacent bassinets and to 1 in a nearby bassinet. Cases were identified by use of rectal swabs plating directly to S.S. agar and to tetrathionate enrichment broth. Clinical manifestations varied from a rapidly fatal illness to mild, almost asymptomatic, infections. Control measures consisted of repeated cultural surveys of the whole ward, isolation of all infants found positive, and such general measures as effective hand washing after handling any child.

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