An Afghan health worker, polio vaccine. 阿富汗衛生工作者, 脊髓灰質炎疫苗

An Afghan health worker administers the polio vaccine to a child during a campaign at a refugee camp on the outskirts of Jalalabad in Nangarhar province. Polio, once a worldwide scourge, is endemic in just three countries now: Afghanistan, Nigeria and Pakistan.
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May 11, 2015
http://www.voanews.com/media/photogallery/day-in-photos-may-11-2015/2763216.html

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