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
Woolwich 1923
[Report of the Medical Officer of Health for Woolwich]
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51
have been examined. The balance of 53 is accounted for
by military cases, cases occurring in institutions and by lost
record cards. All notifications of diphtheria were regarded
for this purpose as notifications including bacteriological cases
and those notified more than once in successive years. There
were eleven such cases of secondary notifications in the
series, one case being notified three times, and ten others
twice. The following Table shews the number of families
attacked and the number of cases occurring in each family.
It will be noted that in 84 per cent. of the families attacked,
only one case occurred over a period of three years:—
TABLE No. 35.
| No. of Cases in family. | No. of Families. | Total No. of Cases. | Excluding Cases Notified more than once. | |
|---|---|---|---|---|
| No. of Families. | No. of Cases. | |||
| 1 | 896 | 896 | 902 | 902 |
| 2 | 123 | 122 | 244 | |
| 3 | 33 | 99 | 29 | 87 |
| 4 | 8 | 32 | 7 | 28 |
| 5 | 2 | 10 | 2 | 10 |
| 6 or more | 5 | 35 | 5 | 35 |
| 1,067 | 1,318 | 1,067 | 1,306 | |
Table No. 36 shews in detail the number of days elapsing
between the first case and the subsequent cases in the family,
and the number of instances in which this sequence of events
occurred. In constructing this table, regard has been given
to the fact that if a third case occurs in the family, a second
must have occurred previously, and so, interpreted in this
light, Table No. 35 reads as follows:—In 1,067 families, at
least one case occurred; in 171, two cases; in 48, three
eases; in 15, four cases; in 7, five cases; in 5, six cases;
in 3, seven cases, and in 2, eight cases.
d 2