Definitions. 1  Age distribution > Population aged 0-14: Percentage of total population aged 0-14. 2  Age structure > 0-14 years: The distribution of the population according to age. 3  Birth rate: The average annual number of births during a year per 1,000 persons in the population at midyear; also known as crude birth rate.
Hand-foot-and-mouth disease, or HFMD, is caused by a virus. Symptoms include ulcers, or sores, inside or around the mouth, and a rash or blisters on the hands, feet, legs, or buttocks. And while it's not pleasant, it also isn't serious. Anyone can get the disease, but children under age 10 are most likely to catch it.
Good personal hygiene is important to prevent spread of the disease. 1  Hand, foot and mouth disease (HFMD) is caused by a virus (usually from the coxsackie group of enteroviruses, particularly coxsackie virus A16). It causes blisters on the hands and feet, in the mouth and often in the ânappyâ area. It is generally only a mild disease that lasts seven to ten days.