Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Forty-third annual report on the health and sanitary condition of the Parish of St. Mary, Islington
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Showing the rise and fall of Diphtheria for each week in 1898, and the averages for the corresponding
weeks in the seven years 1891-97
Red line indicates the number of eases each week during 1898.
Green line the average per week, 1891—7.