Major Walter Reed worked as a medical scientist within the military ("Major Walter Reed"). On June 26, 1880, he began working on typhoid fever and proved that it was the result of the typhoid bacillus, explaining its transmission route ("Major Walter Reed..."). In 1900, while American troops were encamped in Cuba during war, Reed led his team there to study yellow fever which many soldiers were suffering from ("Major Walter Reed"). There, he confirmed the theory that yellow fever is transmitted by Aedes aegypti mosquitoes which is a biological vector – not by direct or indirect contact (fomites). This finding saved the lives of many American soldiers in Cuba ("Major Walter Reed"). His finding lead to the birth of epidemiology and biomedicine ("Major Walter Reed...").
How does this affect me?
Reed’s discoveries most likely helped to make further research on yellow fever possible because by then scientists knew where yellow fever came from. This is applicable to my life because since I know that mosquitos are disease-causing vectors I can be more careful around them.
(image from http://en.wikipedia.org/wiki/Image:WalterReed.jpeg)