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Yellow Fever Encroaches Megacities, Straining Global Vaccine Supply
Brazil has launched a massive vaccination campaign to protect against a disease that has killed hundreds of people. But it's facing huge challenges, including a shortage of the yellow fever vaccine.
Read more on NPR
Yellow Fever Encroaches Megacities, Straining Global Vaccine Supply
Brazil has launched a massive vaccination campaign to protect against a disease that has killed hundreds of people. But it's facing huge challenges, including a shortage of the yellow fever vaccine.
Read more on NPR
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