1. Letter from Daniel Nathans to I. Arita Publication: Produced: 7 February 1979 Subject(s): Variola virus Archival Collection: The Daniel Nathans Papers (Profiles in Science)
2. E-Mail from Joshua Lederberg [reviewing "Assessment of Future Scientific Needs for Live Variola Virus"] Publication: National Academy Press (U.S.), 14 February 1999 Subject(s): Variola virus Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
3. Smallpox (variola) Publication: [Tokyo] : PH&W GHQ SCAP, January 1947 Subject(s): SmallpoxVariola virusJapan -- epidemiology
4. Smallpox (variola virus) infection: developing drugs for treatment or prevention Publication: Silver Spring, MD : Center for Drug Evaluation and Research, November 2019 Subject(s): Clinical Trials as TopicDrug Development -- standardsSmallpox -- drug therapySmallpox -- prevention & controlAntiviral Agents -- pharmacologyAntiviral Agents -- therapeutic useDrug Evaluation, PreclinicalEmergenciesInvestigational New Drug ApplicationModels, AnimalOrthopoxvirusPublic HealthResearch DesignSafetyToxicity TestsVariola virusAnimalsHumansUnited StatesUnited States. Department of Health and Human Services.United States. Food and Drug Administration.
