Yellow fever

Sawyer writes a letter of introduction for Hench, hoping that Packard will see him.

Sawyer writes Strode in an attempt to trace a missing books belonging to Agramonte Rodriquez Leon.

Mayer sends Hench a photograph of the Carlos J. Finlay Memorial in Panama City.

Wood thanks Hench for his letter about the yellow fever survivors. He notes that it will be useful for a project to commemorate the 50th anniversary of Reed's work.

Rucker reports on possible cases of yellow fever in Guayaquil, Ecuador.

Sanger introduces Caldas, a Brazilian scientist who developed a yellow fever vaccine, to the Havana community. [Courtesy of the National Archives and Records Administration]

Reed's experiments have convinced Gorgas that the mosquito theory is valid. Gorgas discusses the implications for sanitation and non-immune troops.

Gorgas discusses yellow fever theories and the possibility of war with Germany.

Gorgas requests that Carter go to South America in order to continue his yellow fever work for the Rockefeller Foundation. He mentions the work of Guiteras and Wrightson.

Gorgas writes that he favors combining the U.S. Public Health Service and the War Department. Gorgas does not know if he will be retained after his retirement, although he looks forward to resuming yellow fever work after war.

Gorgas writes that he is preparing to travel to Guayaquil. He is uncertain of his plans for the next year.

Gorgas discusses an outbreak of yellow fever and solicits Carter's advice.

Gorgas confirms Ross's story concerning Carroll and Guiteras.

Gorgas writes about yellow fever cases in Panama, as well as sanitary efforts and political maneuvering.

Gorgas writes about his administration of sanitary affairs in the Canal Zone and political machinations.

Gorgas seeks support for his yellow fever work in Panama.

Gorgas writes about the use of pyrethrum in the Canal Zone for the treatment of yellow fever and plague.

Gorgas recommends King as superintendent of Yellowstone Park. He discusses the functions and administration of the Sanitary Department.

Gorgas offers his opinion on the organization of the Sanitary Department in the Canal Zone. He also comments on his candidacy for the office of Surgeon General.

Gorgas seeks advice on candidates for the Chief of Laboratory. He reports on the state of disease in Panama, noting a small pox outbreak and the absence of yellow fever since May.