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one of our former apprentices (after his National Service) as a Senior Dental
Technician.
VACCINATION AGAINST TUBERCULOSIS
Our B.C.G. vaccination scheme continued during 1961 and the gratifying tot
of 1,164 tests undertaken by your doctors illustrates the co-operation of parents
what is one of the major preventive measures against tuberculosis.
The Chest Physician and his staff at the Barking Hospital have assisted#
all doubtful cases and their co-operation has been invaluable.

Students of the South-East Essex Technical College were again invited
to participate although only 18 accepted. Of this number 6 had positive
reactions and the remaining 12 received B.C.O.
IMMUNISATION
Diptheria, Whooping Cough and Tetanus
You may remember that from 1953 to 1959 we carried out several pieces of
elaborate research to prove that combined and triple injections against diphtheria
whooping cough and tetanus were preferable to separate injections, mainly became
of the lesser number of injections and in view of the fact that the protection want
almost equally adequate.
At the time, Essex County Council had instructed us to use only separate
injections, although previously we had been using the combined vaccines.
In 1957, even the Ministry recommended the use of separate vaccines on the
grounds that there was a very slight risk of the combined and triple vaccines
voking a tendency to poliomyelitis paralysis in the limb which received the inoclation.
This assertion was not accepted by all authorities and indeed many
continued to use the combined vaccines.
Finally in September 1961, the Ministry admitted that there were some disease
vantages in the administration of separate injections and in view of the lesser
risk of catching poliomyelitis following an extensive polio-vaccination campaign
they advised the use of combined and triple injections which we had fought so
long to retain. Needless to say, we immediately took step to give effect to the
recommendation.
Poliomyelitis
In October 1961 information was released on television and in the press that
oral poliomyelitis vaccines would shortly become available, that is to say vaccination
was to be administered by mouth instead of by injections as heretofore,
we received confirmation of this from the Ministry of Health, the oral vaccine
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