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50
Onset. Cases
June 2nd
6 th
„ 13th
„ 16th
„ 19th
„ 23rd
„ 23rd
7
July 4th
„ 25th
2
Aug. 11th
„ 23rd
2
Sept. 18th 1
Nov. 30th 1
Total 25
The heaviest incidence occurred in April. At the beginning of
May, I sent a circular letter to all the doctors in practice in the
town, warning them of the cases that had occurred. The outbreak
appeared to be subsiding, but in June, after 29 days, there was an
onset of 7 more cases. There were none then for 21 days, when 2
cases occurred during each of the months of July and August. There
was again a break of 25 days, with 1 case in September. Seventythree
days passed before the onset of the last case at the end of
November.
The diagnosis in 22 cases was confirmed by means of the Widal
test, one case being of an indefinite character. The sex incidence
was : female, 17; male, 8; and the ages ranged from 1-52 years.
15 cases were removed to the Ilford Isolation Hospital; 1 case
was removed to Romford Infirmary; 9 cases were treated at home.
No case proved fatal. No second case occurred at any house.
16 of the cases occurred within a circle, the diameter of which
is about 1½ miles; 5 of the other cases were found to have partaken
of food purchased in the same area or partaken at relatives' houses
in the area; 10 of the total cases had obtained food in London or
outside Ilford, and some of the cases appeared to have definitely
contracted the complaint outside the Borough.