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Walter Reed and Yellow Fever
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Historical SummaryThe scourge of yellow fever, often called the "American plague." swept over the New World with the African slave trade. When Yellow Jack visited, death-carts rumbled through the streets and the air was rent with the cries of grave-diggers, "Bring out your dead! Bring out your dead!" Although the dread disease was not transmissible from person to person, an eyewitness to the terrible Yellow Fever epidemic in Philadelphia in 1793 reported that "acquaintances and friends avoided each other in the streets, and only signified their regard by a cold nod. A person with crape or any appearance of mourning was shunned like a leper." As early as 1854 the theory was advanced that yellow fever was transmitted by the mosquito, but proof was lacking. At the very end of the century the United States Army Yellow Fever Commission, headed by Dr. Walter Reed, determined to experiment with human beings in order to check the possibility of transmission by the Stegomyia mosquito. The Commission members felt it their duty to run the risk involved themselves, before submitting anyone else to it. In the course of these dangerous experiments, Lazear, the entomologist, was accidentally bitten by an infected mosquito and died of yellow fever nine days later, and Dr. James Carroll contracted the disease and suffered a damaged heart. Reed was undaunted. At an army post in Cuba he was able to produce yellow fever by exposing patients to mosquito bites,1 by injections of blood, and by injections of filtered bloom serum. He conclusively established that the female mosquito carries the parasite of yellow fever and that the disease was not contracted by close contact with yellow-fever patients, or with their clothing or bedding. Reed’s heroic experiments bore immediate fruit. In 1900 there were 1,400 cases of yellow fever in Havana; in 1901 thirty-seven cases in the whole of Cuba; in 1902 not a single case. With its method of transmission known, the yellow-fever scourge has been controlled by eliminating the Aedes mosquito from cities; but, despite the production of an effective vaccine, vast reservoirs of infection still remain in extensive stretches of the African interior and in the Amazon basin and adjacent areas.
Key QuoteWalter Reed lifts the impenetrable veil: "The prayer that has been mine for twenty years has been granted."
Howard A. Kelly
Baltimore
1923
Edmund B. Kelly
Yellow Jack
[1900]
Dr. Reed’s own account:
At 11:55, December 21, 1900, fifteen mosquitoes were freed in the larger room of the "Infected Mosquito Building" which was divided into two compartments by a wire-screen partition. The interval that had elapsed since the contamination of these insects was as follows: one, twenty-four days; three, twelve days; four, eight days; and seven, five days. The only articles of furniture in this building consisted of three beds, one being placed in the mosquito room and two beyond the wire screen, these latter intended to be occupied by two "control" non-immunes. The articles of bedding as well as the bedsteads had been carefully disinfected by steam.
At noon on the same day, five minutes after the mosquitoes had been placed therein, a plucky Ohio boy, Moran by name, clad only in his nightshirt and fresh from a bath, entered the room containing the mosquitoes, where he lay down for a period of thirty minutes. On the opposite side of the screen were the two "controls" and one other non-immune. Within two minutes after Moran’s entrance he was bitten about the face and hands by the insects that had promptly settled down upon him. Seven in all bit him at this visit. At 4:30 P.M. he again entered and remained twenty minutes, during which time five others bit him. The following day at 4:30 P.M., he again entered and remained fifteen minutes, during which three insects bit him, making the number fifteen that fed at these three visits. The building was then closed, except that the two non-immune "controls" continued to occupy the beds on the non-infected side of the screen.
On Christmas morning at 11 A.M. this brave lad was stricken with yellow fever and had a sharp attack which he bore without a murmur. The period of incubation in this case was three days and twenty-three hours, counting from his first visit, or two days and seventeen and a half hours, if reckoned from his last visit. The two "controls" who had slept each night in this house, only protected by the wire screen, but breathing the common atmosphere of the building, had remained in good health. They continued to remain so, although required to sleep here for thirteen additional nights. As Moran had remained in strict quarantine for the period of thirty-two days prior to his attack, the source of his infection must be found in this house.
Columbia Barracks,
Quemados, Cuba,
11:50 P.M., December 31, 1900
Only ten minutes of the old century remain. Here have I been sitting, reading that most wonderful book, La Roche on Yellow Fever, written in 1853. Forty-seven years later it has been permitted to me and my assistants to lift the impenetrable veil that has surrounded the causation of this most wonderful, dreadful pest of humanity and to put it on a rational and scientific basis. I thank God that this has been accomplished during the latter days of the old century. May its cure be wrought out in the early days of the new! The prayer that has been mine for twenty years, that I might be permitted in some way or at some time to do something to alleviate human suffering has been granted! A thousand Happy New Years. Hark, there go the twenty-four buglers in concert, all sounding "Taps" for the old year.
1 Private John R Kissinger sad John J. Moran, 8 civilian employee, were the first to volunteer.
Chicago: Walter Reed, Walter Reed and Yellow Fever, ed. Howard A. Kelly in History in the First Person: Eyewitnesses of Great Events: They Saw It Happen, ed. Louis Leo Snyder and Richard B. Morris (Harrisburg, Pa.: Stackpole Co., 1951), Original Sources, accessed November 23, 2024, http://originalsources.com/Document.aspx?DocID=Q32HRRNRJSTD592.
MLA: Reed, Walter. Walter Reed and Yellow Fever, edited by Howard A. Kelly, in History in the First Person: Eyewitnesses of Great Events: They Saw It Happen, edited by Louis Leo Snyder and Richard B. Morris, Harrisburg, Pa., Stackpole Co., 1951, Original Sources. 23 Nov. 2024. http://originalsources.com/Document.aspx?DocID=Q32HRRNRJSTD592.
Harvard: Reed, W, Walter Reed and Yellow Fever, ed. . cited in 1951, History in the First Person: Eyewitnesses of Great Events: They Saw It Happen, ed. , Stackpole Co., Harrisburg, Pa.. Original Sources, retrieved 23 November 2024, from http://originalsources.com/Document.aspx?DocID=Q32HRRNRJSTD592.
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