Viral infections.

In summary, viral infections of the skin that occur at adolescence include those typical of childhood and those associated with sexual maturity. Herpes simplex Type II, molluscum contagiosum, and venereal warts, diseases that have shown a marked increase, are in the latter group. Certain diseases, such as rubella, herpes simplex, varicella, and condylomata acuminata, which may lead to laryngeal papillomas, are particularly important because of their effects on the newborn infant. The epidemiological pattern of viral infections changes, and new viruses gain prominence while others fade in importance as causes of disease. Because of this, we can expect new viral entities and changes in earlier ones.