London's Pulse: Medical Officer of Health reports 1848-1972

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Leyton 1950

[Report of the Medical Officer of Health for Leyton]

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85
Protection against Whooping Cough.
In collaboration with the Medical Research Council, there was
continued in 1950 the controlled investigation—began in February,
1949—into the efficacy of certain brands of whooping cough vaccine.
Although the actual courses of inoculation of over 1,000 young
children have been completed, the necessary work connected with
the supervision and following-up will be continued for at least
another year.