At the beginning of the 20th century, the major cause of child mortality for children aged 1 to 19 was:

Question

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At the beginning of the 20th century, infectious diseases were the major cause of child mortality for children aged 1 to 19. This was before the widespread availability of vaccines and antibiotics that later significantly reduced deaths from diseases such as measles, diphtheria, and whooping cough.

At the Beginning of the 20th Century, the Major Cause