In Mozambique, groups of AIDS patients are using a simple new system to be sure they get their lifesaving antiretroviral drugs: taking turns traveling to collect a supply of pills.
Males have higher rates of fatal accidents per mile than females.
—Gender Differences in Mortality - Wilkinson
When traveling along the distance of nearly 12 miles on the Washington, DC, Metro from downtown to Montgomery County, Maryland, life expectancy of the local population segment rises about a year and a half for each mile traveled. Poor black men at one end of the journey have a life expectancy of 57 years, and rich white men at the other end have a life expectancy of 76.7 years.
Amazing visualization! Hans Rosling
In regions of the New World where tropical infections from Africa could establish themselves freely- coming as they did on top of crushing exposure to European infections-the result was almost total destruction of the pre-existing Ameridian population. On the other hand, in regions where tropical infections could not penetrate, like the Mexican interior plateau and the Peruvian altiplano the destruction of the pre-Columbian populations was less complete, though drastic enough even there.
William McNeal - People and Plagues
Now it makes sense! The pre-cambas had not chance against yellow fever and malaria brought over from Africa. Those cholitas were sneaky up in the altiplano!