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

Immunised in the month ofNo. at risk19491950Total
Jan.Feb.Mar.AprilMayJuneJulyAug.Sept.Oct.Nov.Dec.Jan.Feb.Mar.ObservedExpected
0.000.000.010.01
January5310.02
0.000.000.000.01
February4460.01
0.000.010.010.01
March6470.03
0.000.000.010.01
April5360.02
0.000.010.010.27
May6530.29
0.010.010.280.21
June6810.51
0.010.250.190.31
July6200.76
0.110.170.270.16
August5590.71
0.100.320.190.06
September665110.67
0.120.140.050.02
October4850.33
0.080.050.020.02
November5220.17
0.020.010.010.01
December361110.05
Total diagonals observed0.450.971.051.1023.57
11

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