Ключевые слова: active, activity, bahia, ball, billboards, boy, brazilian, cheerful, chicken pox, child, childhood, children, cute, friends, friendship, fun, game, girl, grass, group, happiness, happy, health system, joy, kid, kids, leisure, little, male, measles, nature, northeast brazil, park, people, person, play, play happy, playground, preteens, rubella, skin, smiling, sport, standing, summer, sunlight, toy, vaccine, young,