The child may not, perhaps, have an abscess, but after a time he may begin to lose flesh, and to grow pale. He does not care for his meals, does not care to play, says he is tired, and wants to lie still all the time. Finally his mother thinks it might be a good idea to have a doctor see him. The doctor examines his body carefully, and then asks for a sample of his urine. When he has examined this, he looks very serious and asks the mother when the child was sick last, and what the disease was. Perhaps she has forgotten all about the slight attack of fever, and the doctor must question her very carefully before she recalls it. At length it occurs to her, and then the doctor asks, "After this attack of fever, did you notice that the skin came off his hands and body?" She replies that she did, and then the doctor tells her that the child really had scarlet fever, and, owing to lack of care, he now has kidney disease. This is a very serious trouble, from which he may never recover, or, in case of recovery, he may always be weak and sickly. Even a mild attack of scarlet fever is not to be neglected; it is a severe and dangerous disease in its very mildest form. It not only kills a great many boys and girls, but it makes delicate in health for all their lives many of those who apparently recover. [Illustration: FIG. 60. One of the ways by which quarantine is broken.] [Sidenote: How confusion of names causes mild cases to go undetected] We often hear people speak of two diseases which they think are not scarlet fever. These two diseases are scarlatina and scarlet rash. Now scarlatina is simply the scientific name for scarlet fever. Some doctors will tell you that you have scarlatina and that it is not exactly scarlet fever. A doctor who says this either is deceiving you or does not know any better. In either case, he ought not to be a doctor, for he lets children be exposed to a disease that is likely to kill many of them. It is the same with scarlet rash. This, too, is simply another name for scarlet fever. Changing the name does not change the disease, and you may call it scarlet fever, scarlatina, or scarlet rash--it makes no difference which; the disease is one and the same. [Sidenote: Why quarantine is necessary for scarlet fever] Quarantine is the only way known for preventing the spread of scarlet fever, as well as of diphtheria. If every case of scarlet fever were quarantined, we could soon stop this disease; but every case is not quarantined, because some of them are so mild that they are not recognized. [Sidenote: How breaking quarantine shows selfishness]