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population which is known to have received inoculation during
the previous 5 years. The immunity index in Kingston for the
1/4 age group is 79% and the total index for all children
under the age of 15 is 56%. Both of these percentages are an
improvement on 1956.
The intensive campaign to immunise as many children as
possible is being maintained with a special objective to secure
the immunisation of 75% of babies before their first birthday,
and it is calculated that during 1957 the proportion of Kingston
babies immunised before they reached the age of 1 year was 74%
Pollomyelitis.
Further progress was made toward the protection of the
child population. Supplies of vaccine were unfortunately very
limited, and it will not be until 1958 that full scale protection
can be accomplished,, Co-operation with the Medical
Research Council, the Surrey County Council and the Physician
Superintendent of Kingston Hospital in connection with the
provision and exchange of information gained from epidemiological
enquiries continued,,
A total of 2 cases were notified in Kingston during 1957
one occurring at the very beginning and one at the end of the
year. In early January, 1957 a young lady, aged 23, was
admitted to Tolworth Hospital with severe symptoms. Poliomyelitis
virus type II was isolated from her faeces®
Six days before she became ill the patient had looked
after 2 children in another household who had recently had
transient febrile illnesses. Poliomyelitis virus type II was
isolated from the faeces of both these children also.
After some 6 weeks in Tolworth Hospital the patient was
transferred to an Orthopaedic Hospital for prolonged treatment
in respect of considerable paralysis of the legs.
The second ease occurred in a boy, aged 3½ at the end
of October. Upon admission to hospital there was slight
muscle weakness and poliomyelitis virus type I was isolated
from the faeces. He was discharged after 5 weeks in hospital
completely recovered.
Neither of the above persons had received vaccination
against poliomyelitis.
Acute Infective Encephalitis.
One case occurred during 1957 in a girl, aged 12½.
This patient was admitted to Tolworth Hospital and on
admission was a typical encephalitis, the illness following
chickenpox. The girl male a rapid recovery with no apparent
sequelae and was discharged home after 2 weeks in hospital®
Eateries Fever (Typhoid or Paratyphoid).
There were no cases of typhoid or paratyphoid B notified
in Kingston during 1957 and this is the tenth successive year
without notification of Enteric Fever. Infection that does
occur throughout England and Wales is mostly imported from
abroad through contaminated foodstuffs.