My dear Gorgas,Instead of being simply satisfied to make friends and draw your pay, it is worth doing your duty, to the best of your ability, for duty’s sake; and in doing this, while the indolent sleep, you may accomplish something that will be of real value to humanity. Your good friend, ReedDr. Walter Reed encouraging Dr. William Gorgas who went on to make history eradicating Yellow Fever in Havana, 1902 and Panama, 1906, liberating the entire North American continent from centuries of Yellow Fever epidemics.

Fortunately for the cause of science and of humanity, we had as Governor-General of Cuba at that time General Leonard Wood, of the United States Army. General Wood had been educated as a physician, and had a very proper idea of the great advantages which would accrue to the world if we could establish the fact that yellow fever was conveyed by the mosquito, and his medical training made him a very competent judge as to the steps necessary to establish such fact. General Wood during the whole course of the investigations took the greatest interest in the experiments, and assisted the Board in every way he could.

Before Lind's experiments, scurvy was not clearly defined as a disease.The term was used as a catchphrase to include all manner of nautical ailments.

The Annual Register for 1763 tabulated the casualty list for British sailors in the Seven Years' War with France. Out of 184,899 men raised or rounded up for the war, 133, 708 died from disease, primarily scurvy, while only 1,512 were killed in action.

Observing the medical histories of various neurological syndromes is like observing the fascinating nerve cells of the human brain in action, while they construct what we so proudly call the Human Consciousness. They remind us of the overwhelming aspects of human silliness. They remind us how such a simple natural response of the human Biology, is misinterpreted as the “last surviving mystery” of this planet.

The circumstances of everyday life were too demanding-and in American's great cities, appalling.

Speechlessness, however, affirmed in the diagnosis, is carefully based on the facts of the examination, as we see by rendering the statements concerned, just as they stand in examination and diagnosis: "If thou examinest a man having a wound in the temple, ...; if thou ask of him concerning his malady and he speak not to thee; ...; thou shouldst say concerning him, 'One having a wound in his temple, ... (and) he is speechless'.

The attention given to the side of the head which has received the injury, in connection with a specific reference to the side of the body nervously affected, is in itself evidence that in this case the ancient surgeon was already beginning observations on the localization of functions in the brain.

The case which I reported on September 26, 1901, was really the last which occurred in Havana. Of course we did not know it at the time, but this case marked the first conquest of yellow fever in an endemic center; the first application of the mosquito theory to practical sanitary work in any disease.

The entire world has benefited and prospered since the decisive defeat of Yellow Fever, an unconventional and far-reaching military victory derived from the field medical discoveries of U.S. Army Major Dr. Walter Reed, designed and carried out by U.S. Army Major Dr. William Gorgas with the overall support under the command of U.S. Army General Leonard Wood.