Public domain
Dr. Herrald R. Cox, who developed the method of producing typhus vaccine from infected eggs, examining bacteria cultures. USPHS (United States Public Health Service) Rocky Mountain Laboratory, Hamilton, Montana
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Credit lineDr. Herrald R. Cox, who developed the method of producing typhus vaccine from infected eggs, examining bacteria cultures. USPHS (United States Public Health Service) Rocky Mountain Laboratory, Hamilto. 1942-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.
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Doctor Herrald R. Cox with flasks of the typhus vaccine obtained from eggs according to the method which he developed. USPHS (United States Public Health Service) Rocky Mountain Laboratory. Hamilton, Montana
Dr. Herrald R. Cox with flasks of typhus vaccine obtained from eggs according to the method which he developed. USPHS (United States Public Health Service) Rocky Mountain Laboratory, Hamilton, Montana