This tool can be used to visualize sex and age composition of a particular population. It is also used in ecology to determine the overall age distribution of a population; an indication of the reproductive capabilities and likelihood of the continuation of a species. Population pyramid often contains continuous stacked-histogram bars.
Hand, Foot, and Mouth Disease Symptoms & Signs. The symptoms of hand, foot, and mouth disease are typically mild and occur mainly in children during the spring and fall seasons. Symptoms can include fever, malaise, decreased appetite, and sore throat. A rash is characteristic of this viral disease.
Mouth sores may make it difficult to eat and drink. A rash consisting of red spots or blisters appears on the soles of the feet and palms of the hands. Pain relievers and mouth numbing sprays may be used to relieve symptoms of hand-foot-and-mouth disease. The illness is usually benign and resolves on its own.