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
Willesden 1902
[Report of the Medical Officer of Health for Willesden]
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So far, the figures exhibit the protecting influence
of vaccination against attack and against death by
Small Pox. The influence of vaccination is quite as
striking when we consider its effect upon the type
of attack.
Confluent Small Pox is incomparably more severe,
horrible, and permanently damaging than discrete.
The table shows how its incidence is modified by
vaccination.
TABLE No. 16.
| Cases. | Confluent or haemorrhagic | Rate per 100. | |
|---|---|---|---|
| Unvaccinated | 19 | 13 | 68.4 |
| Vaccinated | 49 | 10 | 20.4 |
| No Evidence | 3 | 3 | — |
| Total | 71 | 26 | 36.6 |
The value of efficient vaccination in preventing
the occurrence of confluent Small Pox where time has
weakened its protecting influence, is illustrated when
the relationship between the number of vaccination
marks and the incidence of confluent variola is
considered.