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FOOD POISONING
There were no outbreaks of food poisoning and no deaths
from this cause.
In twenty confirmed cases notified by general practitioners
the causative organisms were identified as shown below;-
S. Aureus 5 cases.
S. Enteritidis 1 case.
S. Infantis 1 case.
P. Morgani 1 case.
S. Newport 1 case.
S. Typhi-murium 11 cases.
Although every effort is made to trace the source of
infection, it is for several reasons very difficult to do so in
these sporadic cases. The investigation of an "outbreak" is an
entirely different proposition and is in many ways much easier.
Of the twenty cases referred to above nine were the only
members of their household affected.
In family groups there were one of three persons, one of
four persons and two of two persons.
One of the isolated cases was a child attending a London
school and concerned in an outbreak arising from the mid-day
meal.
Two more of the isolated cases were almost certainly
infected whilst away on holiday.
One mother and her baby derived their infection from a
raw egg.
In the remaining cases no source of infection could be
traced.

18.