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survey undertaken by the Borough in order to check how many persons placed under surveillance
were in fact contacted. To assist in this a reply-paid envelope and detachable sheet were enclosed
with the surveillance notification.
In analysing the results of the last quarter of the year, it was found that of 1,285 persons placed
under surveillance, replies were received in respect of 548 persons and of these 471 had been
contacted. Of the 77 not contacted, 46 were found not to be at the address given, 19 had already
left the address and in 2 cases the address was non-existent. In only one case was the address
inaccurately given.
Cholera
The year passed without an outbreak of cholera in either Portugal or Spain, as happened in
1971, although there were outbreaks in Tunisia, Algeria and Morocco, from where there is considerable
migration of labour to the south european countries.
The Department of Health and Social Security introduced an advice notice to be issued to
travellers arriving from countries where there was a risk of contracting cholera, rather on similar
lines to the yellow warning card for use in partial agreement countries. As a result of the issue of
this leaflet, it was no longer necessary to inspect cholera vaccination certificates and the clearance
of flights through the health control check-point was effected much more quickly.
The number of passengers placed under surveillance was 555.
Other Infectious Diseases
Eighty-eight persons were admitted usually to St. John's Hospital, Uxbridge, or, if it was full
up, then to Coppett's Wood Hospital.

Other conditions included secondarily infected eczema, cellulitis, upper respiratory tract
infection, peritonsillar abscess, sickle-cell anaemia and salmonella infection.
MEDICAL EXAMINATION OF COMMONWEALTH IMMIGRANTS
The total number of Commonwealth Immigrants referred to the Medical Inspectors over the
last five years was:
1972 44,629
1971 39,961
1970 44,611
1969 44,575
1968 46,828
The number of forms port 23 completed in 1972 was 61 (62 in 1971, 69 in 1970).
The categories of those immigrants seen in 1972 was:
(a) Voucher-holders or entitled dependants 21,183
(b) Non-entitled dependants 23,328
(c) Those appearing to be mentally or physically abnormal 28
(d) Those appearing not to be in good health 32
(e) Those mentioning health as a reason for their visit 58
The number of refusals following medical recommendation was 20.
Mental instability 18
Pulmonary tuberculosis 1
Diabetes mellitus 1
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