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

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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London

Heston and Isleworth 1925

[Report of the Medical Officer of Health for Heston and Isleworth]

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ENCEPHALITIS LETHARGICA.
COMPARATIVE FREQUENCY OF SYMPTOMS.
BLACK—Comparative frequency of symptoms.
RED—Comparative frequency of initial symptoms as given by Parsons (1922).
In the graph set out above, the symptoms arising in the cases in this district are shewn in
black, and those recorded by Parsons in red.