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EPIDEMIOLOGY
Notification of Infectious Disease
A total of 780 cases of infectious disease were notified during the year
and of these 159 cases were removed to hospital.
Incidence of Infectious Disease
MEASLES
There was an appreciable decrease in the number of cases from 624 (1970)
to 283.
DYSENTERY
There was an increase in the number of cases notified, mainly due to an
infection involving several schools which occurred in the last quarter of
the year.
FOOD POISONING
There was also a slight increase in the number of food poisoning cases
ascertained.
The different phage typings identified were as follows
Salmonella CI. Welchii 1
Agona 1
Coleypark 1
Enteriditis 5
Infantis 3
Johannesburg 1
Heidelberg 1
Indiana 2
Oranienberg 1
Panama 1
Reading 1
St.Paul 6
Typhimurium 36
Virchow 6
Poona 2
The remaining infections were due to unknown causes.
TYPHOID
There were two notified cases of typhoid concerning residents of the
Borough. The patients were removed to hospital and all contacts proved
to be clear.
SMALLPOX
No case of smallpox was notified during the year.
Notifications were received from Health Authorities at Ports and Airports
concerning 33 persons who had arrived in this country from abroad without
a valid certificate of vaccination. Of these 27 were from areas where
smallpox is endemic, 6 from locally infected areas. All, with the exception
of five persons who were untraceable, were placed under surveillance
for 14 days from the date of their arrival.
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