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20
a nursery, it was usually necessary to treat all staff and children
with a prophylactic sulpha drug. This raised some administrative
difficulties but was effective. Unfortunately, the drug of
choice was in short supply and expensive. Follow-up of family
contacts was effected as adult symptomless carriers tended to
cause re-infection. Food handlers found infected were put off
work until clear. The essential co-operation of family doctors was
readily forthcoming, so that the whole family could be treated at
the same time. It is probable that the infection was prevalent
throughout the Borough, but it was only recognised when multiple
simultaneous cases led to bacteriological examinations being performed.
This is the usual history of present-day Sonne Dysentery,
and except when it occurs in closed, or semi-closed communities
of young children the extent of the disability does not
warrant strict control measures.