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
Hendon 1938
[Report of the Medical Officer of Health for Hendon]
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96
RESULTS OF INVESTIGATION.
The following is a summary of the results of the
investigation, the criterion of a change of type beingtaken
to be a change in a particular patient from one
typable hæmolytic streptococcus to another typable
hæmolytic streptococcus, and not a change from an untypable
hæmolytic streptococcus to a typable hæmolytic
streptococcus or vice versa, nor a change from a negative
swab to a typable or to an untypable hæmolytic streptococcus.
1. Preliminary period.
Number of patients 65
Number of patients showing change of type 6
Number of changes of type 6
Particulars of patients showing change of hæmolytic streptococcal type during the Preliminary period 1.
| Patient | Age | Cot Position | Date of swab in which change was first noted | Days in hospital before change noted | Change of type |
|---|---|---|---|---|---|
| A | 3½ | 1 Male | 8/6/37 | 15 | Type 1 to type 4 |
| B | 2 | 1 Female | 30/3/37 | 104 | Type 22 to type 1 |
| C | 2 | 2 Females | 5/4/37 | 21 | Type 8 to type 11 |
| D | 2 | 3 Females | 5/4/37 | 74 | Type 20 to type 11 |
| E | 9 | 11 Females | 31/5/37 | 25 | Type 13 to type 28 |
| F | 5 | 5 Females | 28/6/37 | 14 | Type 1 to type 11 |
Since the incidence of change of hæmolytic streptococcal
type during this period was low, the results are not
of particular interest, but the following clinical findings
associated with changes of type may be mentioned. In
three patients, A, B, and E, there were no complications.
In the remaining patients complications occurred as
follows:—