Which man directed the study that led to the conquest of yellow fever, aiding in the building of the Panama Canal?

The correct answer is Walter Reed, who played a pivotal role in uncovering the causes of yellow fever. His leadership in the study of the disease significantly advanced public health measures and contributed to its control, especially in tropical regions. Reed's work demonstrated that yellow fever was transmitted by mosquito bites, specifically from the Aedes aegypti mosquito. This crucial finding laid the groundwork for effective vector control strategies, which were essential for the health of workers during the construction of the Panama Canal.

Understanding the transmission of yellow fever was vital not only for the safety of individuals but also for the successful completion of the canal, as outbreaks of the disease had previously stalled progress. Reed’s research, along with the efforts of Gorgas, who implemented mosquito control measures on the ground, helped to minimize the disease's impact and allowed the canal project to move forward safely.