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65
Measles, Whooping Cough, Etc.—The prevalence of nonnotifiable
infectious diseases, such as measles and whooping cough,
can be judged by the number of cases occurring among the elementary
school children. Each week the head teacher of each school
supplies a return of all new cases. The numbers so reported
during the last three years were as follows:—
1935 1936 1937
Measles 142 1,577 427
Whooping Cough 368 319 697
Chickenpox 649 493 764
Mumps 236 686 925
It will be seen that whooping cough, chickenpox and mumps
were more prevalent in 1937 than in 1936, while there was a large
decrease in the cases of measles.