COVID-19 have come to a vast, remote region of the Amazon that Brazil’s government says is home to greatest concentration of isolated Indigenous groups in the world.Experts fear the new coronavirus could spread rapidly among peoples with lesser resistance even to already common diseases and limited access to health care, potentially wiping out some smaller groups.A 83-year-old Marubo man known as Yovempa died of COVID-19 on July 5, the country’s Special Secretariat of Indigenous Health said five days later.