London's Pulse: Medical Officer of Health reports 1848-1972

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London County Council 1952

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

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T able 1A — A.P.T. antigen Poliomyelitis in the month of:

Immunised in the month ofNo. at risk19491950Total
Jan.Feb.Mar.AprilMayJuneJulyAug.Sept.Oct.Nov.Dec.Jan.Feb.Mar.ObservedExpected
0000010-010-01
January863—————0.03
O.OO0.020.010.02
February1,658—————0.05
0.010.020.020.02
March1,711——_——_—0.07
0.000.010.010.03
April1,315—————0.05
0.010.010.030.63
May1,545_—1_—_—10.68
0.010.030.560.43
June1,38511——21.03
0.010.520.400.62
July1,28012——31.55
0.270.410.650.39
August1,33612——31.72
0.210.670.400.13
September1,38122——41.41
0.720.850.280.09
October2,9471———11.94
0.360.240.080.08
November2,5171———10.76
0.070.050.050.05
December1,598—————0.22
Total diagonals observed1.672.842.502.50159.51
78——

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