A population pyramid, also called an age pyramid or age picture is a graphical illustration that shows the distribution of various age groups in a population (typically that of a country or region of the world), which forms the shape of a pyramid when the population is growing.
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.
Symptoms of hand, foot and mouth disease. Hand foot and mouth disease (HFMD) is a viral illness commonly affecting children below 10 years. Although it can affect teenagers and adults as well, this age group often has milder symptoms. Adults rarely get this infection as they have been exposed to it in their childhood.