HOWARD TAYLOR RICKETTS AND HIS WORK ON TYPHUS FEVER (MEXICAN TYPHUS) Open PDF Document Details Document Type Technical Report Publication Date May 04, 1964 Accession Number AD0839374 Entities Organizations United States Army Biological Warfare Laboratories Tags DTIC Thesaurus Topics Computing System Architectures Diseases And Disorders Health Services Hospitals Instructions Medical Personnel Microorganisms New York Pennsylvania Schools Skin Diseases Spanish Language Students Ticks United States Universities Viruses