endangered monkeys was steadily growing until an outbreak of yellow fever hit Brazil in 2018, wiping out a third of the tamarins.
Undeterred, Ruiz’s team devised an ambitious new experiment: This spring, they would start vaccinating many of the remaining wild monkeys.RELATED: Pregnant elephant dies after reportedly being fed pineapple filled with explosivesEnter the coronavirus, which is now hampering critical work to protect threatened species and habitats worldwide.First, members of Ruiz’s team exposed to the virus had to be quarantined.
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