[Report of the Medical Officer of Health for Leyton] page 78

Leyton 1935

[Report of the Medical Officer of Health for Leyton]

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ANALYSIS OF INCIDENCE OF SCARLET FEVER AMONG SCHOOL CONTACTS (1932-1935).

1. During the period 1932-33 school contacts of patients treated at home were excluded from school for the minimum period of six weeks.

2. During the period 1934-35 school contacts of patients treated at home were excluded from school for one week.

	Removed to Hospital.						Treated at Home,
	1932	1933	Total	1934	1935	Total	1932	1933	Total	1934	1935	Total
1. Number of Cases*	215	447	662	404	277	681	94	275	369	270	123	393
2. Contacts of School Age	259	557	816	482	264	746	66	118	214	196	65	261
3. School Attendances lost by Contacts	2,590	5,570	8,160	4,820	2,640	7,460	3,960	8,880	12,840	1,960	650	2,610
4. Ratio of Contacts (2) to Cases (1)	1.20	1.24	1.23	1.19	0.95	1.09	0.70	0.53	0.58	0.72	0.52	0.66
5. Number of School Contacts who developed Scarlet Fever.
(a) 1st to 8th day	6	8	14	10	3	13	2	5	7	5	1	6
(b) 8th to 36th day	1	4	5	4	7	11	2	3	5	4	1	5
(c) Total	7	12	19	14	10	24	4	8	12	9	2	11
6. Percentage of School Contacts who developed Scarlet Fever.
(a) 1st to 8th day	2.31	1.43	1.71	2.07	1.13	1.74	3.03	3.37	3.27	2.55	1.54	2.29
(b) 8th to 36th day	.38	.71	.61	.83	2.65	1.44	3.03	2.03	2.33	2.04	1.54	1.91
(c) Total	2.69	2.15	2.32	2.9	3.79	3.2	6.06	5.4	5.6	4.59	3.08	4.21

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* Notified cases occurring in institutions have been omitted in view of the difficulty of ascertaining the actual number of contacts.