[Report 1920] / Medical Officer of Health, Newcastle-upon-Tyne City & County.

  • Newcastle upon Tyne (England). City & County Council.
Date:
1920
Catalogue details

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: [Report 1920] / Medical Officer of Health, Newcastle-upon-Tyne City & County. Source: Wellcome Collection.

    100/176 (page 88)
    Of the above classes, the average day of disease on discharge from hospital of the supposed infecting cases, and the period elapsing after that discharge and the onset of illness in the ‘‘ return ” case, were as follows :— Class (a)—31'9 and 16*5 days. „ (b)—37*7 „ 12*1 „ „ (c)— 53*6 ,, 10*1 „ In 4 instances “return” cases occurred although the supposed “ infecting ” cases had been detained in hospital for between 70 and 80 days “ Return ” Cases for Years 1906-1920. Year. Total Scarlet Fever Admitted. “Infecting” Cases. “ Return ” Cases. No. Percentage. No. Percentage. 1906 442 7 1-6 10 2*3 1907 390 11 2-8 17 4-4 1908 283 4 1*4 5 1-8 1909 * 623 23 3-7 30 4-8 1910 465 18 3-9 20 4-3 1911 605 26 4-3 30 4-9 1912 1,018 47 4*6 52 5-1 1913 853 23 2-7 24 2-8 1914 1,404 78 5-6 96 6*8 1915 1,305 43 33 49 3-7 1916 677 22 33 24 3-5 1917 409 9 2-2 13 3-2 1918 381 13 34 14 3-6 1919 630 23 3 6 22 3-5 1920 1,105 37 3-3 39 35 Hospital and Home “ Isolation” Compared. In order to determine the relative liability to further infection subsequent to the first, in hospital and home- isolating households respectively, a careful record has been kept for eight years of the number of presumably susceptible persons in each invalided house, all, other than the original patient, below 12 years of age being so classed, and the proportionate incidence of secondary cases calculated. Cases occurring within seven days of the “isolation” of the original case were not counted, as these probably acquired their infection before the influence of the “isolation” could be felt. Cases occurring subsequently to the seventh day of “isolation” of the original case, and prior to the release of the latter, were classed as “incidental” infections.