cover the body, but few other symptoms.

_What are the first symptoms of scarlet fever?_

Generally it comes suddenly, with vomiting, high fever, and sore
throat. The eruption usually appears within twenty-four hours as a red
blush, first upon the neck and chest, and spreads rapidly.

_When and how is scarlet fever contagious?_

Scarlet fever is only slightly contagious for the first one or two
days of the attack. It is most contagious at the height of the disease
and during desquamation. It may be carried by healthy persons and by
the clothing or bedding from the sick room.

_How does whooping-cough begin?_

For a week or ten days it cannot be distinguished from an ordinary
cold on the chest. Then the attacks of coughing gradually become more
severe and vomiting may follow. After a severe coughing fit the breath
is caught with a peculiar noise known as the "whoop."

_How does chicken-pox begin?_

It usually comes out gradually, as widely scattered pimples over the
scalp, face, and body, many of which soon become small vesicles,
resembling tiny blisters. There is itching and local discomfort but
little fever, and the child rarely seems to be very ill.

_How does diphtheria begin?_