Brazil launches campaign to vaccinate 20 million against yellow fever

An ambitious vaccination campaign is underway in Brazil to counter a large-scale outbreak of yellow fever. Health officials want to inoculate more than 20 million people. International travelers heading to Sao Paulo state are being warned to get their shots before they go. CGTN's Paulo Cabral has more.


(Source: CGTN America, https://www.youtube.com/watch?v=ZfWj4baXuAQ)
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