A boy showing his hand that has been marked with ink after receiving the oral polio immunization. After being declared polio-free by World Health Organization officials in 2014, Indonesia is observing National Polio Immunization Week by vowing to inoculate millions of children. The expanded mass immunization drive against polio and measles began simultaneously. The polio immunization drive is targeting children aged 9 to 59 months old, and that for measles infants nine month to 59 month old. (Photo by Agung Samosir / Pacific Press)

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Keywords: asean, asia, babies, boy, children, chilhood, girl, health, immunization, indonesia, indonesian, jakarta, oral, polio, posyandu, vaccine