Brazil's Yellow Fever Cases Wane, But Scientists Fear Resurgence06:58
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People line up to receive the yellow fever vaccine at a public health post in Caratinga, in the southeastern state of Minas Gerais, Brazil, on Jan. 13, 2017. (Douglas Magno/AFP/Getty Images)
People line up to receive the yellow fever vaccine at a public health post in Caratinga, in the southeastern state of Minas Gerais, Brazil, on Jan. 13, 2017. (Douglas Magno/AFP/Getty Images)
This article is more than 2 years old.

There were no new cases of yellow fever reported in Brazil last month, a change from earlier this year when the country reported more than 700 cases, including those near big cities like Rio De Janeiro and Sao Paulo.

But scientists still fear a resurgence, especially as Brazil enters its summer months.

Here & Now's Meghna Chakrabarti speaks with writer Sam Kean (@sam_kean) who followed the trail of yellow fever and the push to prevent outbreak for Science magazine.

This segment aired on August 29, 2017.

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