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 1910
[Report of the Medical Officer of Health for Woolwich]
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39
(4) that the days from the second to the fifth after exposure
are those in which most secondary cases occur.
Scarlet Fever.—Four Years, 1905-8.
Minimum Incubation,
of second case.
| Days. | Weeks. | Weeks. | Weeks. | Months. | Months. | Months | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 3 to 4 | 4 to 5 | 5 to 6 | ||
| No. of Cases | 18 | 20 | 7 | 11 | 6 | 8 | 6 | 21 | 15 | 3 | 1 | 2 | 5 | 5 | 2 | 4 | 11 | 1 | 1 | 5 | 2 | 1 | |
| 76 | 40 | 14 | 17 | 5 | 2 | 1 | Total 155 | ||||||||||||||||
| Maximum Incubation, i.e., Interval between commencement of first case and commencement of second case. | |||||||||||||||||||||||
| Days. | Weeks. | Weeks. | Weeks. | Months. | Months. | Months | |||||||||||||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 3 to 4 | 4 to 5 | 5 to 6 | ||
| No. of Cases | 35 | 31 | 21 | 23 | 9 | 18 | 12 | 51 | 32 | 9 | 7 | 4 | 3 | 7 | 5 | 2 | 8 | 6 | 2 | 4 | 3 | 4 | |
| 149 | 99 | 19 | 18 | 4 | 3 | 4 | Total 296 | ||||||||||||||||