疾病对文明进程的影响 Im pact of disease on progress of civilization o Since 1 6th century western colonists started entering the Africa, but the fatal infectious disease stopped them white people' s tomb") o The discovery of quinine let Europeans managed to colonize africa “ Tropical disease }米, XOR疾病 对文明进程的影响 Impact of disease on progress of civilization  Since 16th century western colonists started entering the Africa, but the fatal infectious disease stopped them (“white people’s tomb”)  The discovery of quinine let Europeans managed to colonize Africa “Tropical disease