Zambia rolls out oral polio vaccination campaign targeting 3.8 mln children - cgtn.com

Zambia on Wednesday launched an oral polio vaccination campaign targeting about 3.8 million children aged

Zambia on Wednesday launched an oral polio vaccination campaign targeting about 3.8 million children aged below five years. The first of the four-round vaccination campaigns will be done in three of… [+1170 chars]

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