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.
Hand-foot-and-mouth disease is an illness that causes sores in or on the mouth and on the hands, feet, and sometimes the buttocks and legs. The sores may be painful.