they actually did take a great deal of precautions in the later American phase, like draining swamps and chemical agents to control mosquito populations. Mosqui

they actually did take a great deal of precautions in the later American phase, like draining swamps and chemical agents to control mosquito populations. Mosquito born illness was a major factor that sunk the earlier french attempt. https://en.wikipedia.org/wiki/Health_measures_during_the_construction_of_the_Panama_Canal https://en.wikipedia.org/wiki/Health_measures_during_the_con...