1. Letter from Fred L. Soper to Leonel Tavares Miranda de Albuquerque Publication: Produced: 24 August 1967 Subject(s): AedesMosquito ControlBrazilYellow Fever Archival Collection: The Fred L. Soper Papers (Profiles in Science)
2. Letter from Fred L. Soper to Paulo C. A. Antunes Publication: Produced: 22 August 1967 Subject(s): Yellow FeverMosquito ControlAedesBrazil Archival Collection: The Fred L. Soper Papers (Profiles in Science)
3. Letter from Fred L. Soper to Eugene P. Campbell Publication: Produced: 6 October 1967 Subject(s): Yellow FeverDiagnosis Archival Collection: The Fred L. Soper Papers (Profiles in Science)
4. Letter from Fred L. Soper to Pedro Galindo Publication: Produced: 24 May 1966 Subject(s): Yellow FeverFellowships and Scholarships Archival Collection: The Fred L. Soper Papers (Profiles in Science)
5. Letter from Pedro Galindo to Fred L. Soper Publication: Produced: 18 May 1966 Subject(s): Yellow FeverFellowships and ScholarshipsEducation, Graduate Archival Collection: The Fred L. Soper Papers (Profiles in Science)
6. Letter to the Editor: The American Journal of Tropical Medicine & Hygiene Publication: American Society of Tropical Medicine and Hygiene, May 1969 Subject(s): Yellow FeverCommunicable Disease Control Archival Collection: The Fred L. Soper Papers (Profiles in Science)