Swing Low, Sweet Chariot
The Mortality Cost of Colonizing Liberia in the Nineteenth Century
McDaniel compares the mortality rates of the emigrants to those of other migrants to tropical areas. He finds that, contrary to popular belief, black immigrants during this period died at unprecedented rates. Moreover, he shows that though the emigrant's mortality levels were exceptionally high, their mortality patterns were consistent with those of other populations.
McDaniel concludes that the greater the variance between the environment left and the environment entered, the higher the probability of contracting a new disease, and, in some cases, of death from these diseases. Additionally, a migrant's health can be affected by dietary changes, differences in local pathogens, inappropriate immunities, and increased risk of accidents due to unfamiliar surroundings.