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106
So far this fact has not been established or confirmed from the
polio cases in this area.
Some forms of virus exclude and prevent colonisation of a host's
cells by a related fiercer strain—this is, of course, the basis of
vaccination—and it is possible that the future may reveal that the
odd 1 % of polio sufferers who progress to the paralytic stage have
not an inherent ' interfering ' virus.
Malaria.—Four notifications were received, all from the Royal
Herbert Hospital and all in connection with military personnel.
Each case was of the benign tertian type believed to have been
contracted abroad.
Tuberculosis.—During the year 106 notifications in respect
of confirmed cases of tuberculosis were received compared with 101
for 1953. Of these, 93 were of the pulmonary type and 13 non—
pulmonary, i.e., tuberculosis of parts of the body other than the
lungs.
The slight increase in the figure for the current year follows the
general trend obvious throughout the country.

Disinfection was offered and carried out in 39 cases including
64 rooms and 348 articles of clothing and bedding, etc.

For further clarification I append herewith copy of Form T.137
(revised) for the year under review as forwarded to the County
Mcdical Officer of Health.