The Plague doctor illustration is from Devils, Drugs & Doctors (Haggard, 1929). It depicts the protective clothing used by doctors treating the plague in Marseilles c1720. The beak was filled with spices to purify the inhaled air. At the time it was believed that plague was contagious by touch, hence the leather gloves and wand.
The diseases brought over sea from the various countries killed off many Native Americans and their families and crops. Diseases like smallpox, malaria, measles all destroyed many Natives lives as they tried to prosper in their homeland.
Black Death Left a Mark on Human Genome 3 February 2014 The Black Death didn’t just wipe out millions of Europeans during the century. It left a mark on the human genome, favoring those who carried certain immune system genes