Which country police train dogs to sniff out Covid-19?

A. Brazil
B. Chile
C. Algeria
D. None of Above

Police in Chile are training dogs to detect people who may be infected with the novel coronavirus by sniffing their sweat.
The dogs — three golden retrievers and a labrador — are between the ages of four and five. Until now they have been used to sniff out illicit drugs, explosives and lost people, police say.