Smallpox preservation advisable.
D018070:Biological Specimen Banks; D002487:Centers for Disease Control and Prevention, U.S.; D003264:Containment of Biohazards; D006801:Humans; D011309:Preservation, Biological; D011640:Public Policy; D012899:Smallpox / Q000517:prevention & control / Q000821:virology; D012900:Smallpox Vaccine; D014481:United States; D012901:Variola virus / Q000254:growth & development
D012900:Smallpox Vaccine