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dren and ability to produce agglutinin in children.
It is concluded that in future only those pertussis vaccines
which have been shown, by the intracerebral mouse-protectioin test,
to have an adequate potency in relation to the British standard
pertussis vaccine should be issued for use in children.
VACCINATION AGAINST POLIOMYELITIS
The Ministry's scheme was announced in January, 1956, and
registrations were invited in March in regard to children born
during the years 1947 to 1954.
Registrations were 1,685 boys and 1,501 girls, a total of 3,186
representing approximately 25% of children in these age groups.
Vaccination began in May and 114 children of pre-school age,
i.e. born during 1952/54 were vaccinated and 205 of school age,
i.e. born 1947/51 ; a total of 349. In addition 15 children had one
dose.
AMBULANCE FACILITIES
(Section 27)
The Ambulance Service is administered centrally from
Chelmsford via the Control Centre at Ilford, and (as far as informa'
tion is available), it appears to be adequate for the needs of the
Borough.
The Local Service has continued from the Ambulance Depot,
which is situated at the Borough Council's Fulbourne Road Depot.
PREVENTION OF ILLNESS —CARE AND AFTER-CARE
(Section 28)
TUBERCULOSIS
Dr. H. Ramsay, Consultant Chest Physician at the Walthamstow
Chest Clinic, has contributed the following :—
"The work of the clinic during the year has been on
similar lines to previous years. There have been no particular
developments though the tendency is for the overall amount of
work carried out to increase still further. The miniature camera
unit continues to be helpful in dealing with the larger number
of new cases referred to the clinic and it is now quite an easy
procedure for X-ray of the chest to be arranged in any case
where the general practitioner desires it.
"After the sharp fall in the number of notifications up to
1954 there has been a slight rise over the last two years; this
would appear to be no more than a normal variation, but it acts
as a warning that maximum effort in the field of tuberculosis
control is still necessary.