[Report of the Medical Officer of Health for London County Council] page 166

London County Council 1952

[Report of the Medical Officer of Health for London County Council]

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Table: Table 1C.— All other antigens Poliomyelitis in the month of:

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Table 1C.— All other antigens Poliomyelitis in the month of:

Immunised in the month of	No. at risk	1949												1950				Total
Immunised in the month of	No. at risk	Jan.	Feb.	Mar.	April	May	June	July	Aug.	Sept.	Oct.	Nov.	Dec.	Jan.	Feb.	Mar.		Observed	Expected
		0.00	0.00	0.01	0.01
January	531	—	—	—	—													—	0.02
January	531		0.00	0.00	0.00	0.01												—	0.02
February	446		—	—	—	—												—	0.01
February	446			0.00	0.01	0.01	0.01											—	0.01
March	647			—	—	—	—											—	0.03
March	647				0.00	0.00	0.01	0.01										—	0.03
April	536				—	—	—	—										—	0.02
April	536					0.00	0.01	0.01	0.27									—	0.02
May	653					—	—	—	—									—	0.29
May	653						0.01	0.01	0.28	0.21								—	0.29
June	681						—	—	—	—								—	0.51
June	681							0.01	0.25	0.19	0.31							—	0.51
July	620							—	—	—	—							—	0.76
July	620								0.11	0.17	0.27	0.16						—	0.76
August	559								—	—	—	—						—	0.71
August	559									0.10	0.32	0.19	0.06					—	0.71
September	665									—	—	1	—					1	0.67
September	665										0.12	0.14	0.05	0.02				1	0.67
October	485										—	—	—	—				—	0.33
October	485											0.08	0.05	0.02	0.02			—	0.33
November	522											—	—	—	—			—	0.17
November	522												0.02	0.01	0.01	0.01		—	0.17
December	361												1	—	—	—		1	0.05
							Total diagonals observed							0.45	0.97	1.05	1.10	2	3.57
														1		1	—	2	3.57

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Figures in italics are the expected cases calculated from the not inoculated group, see text.