title: Smallpox eradication: temporary retention of variola virus stocks.
mesh_terms: D000818:Animals; D004279:DNA, Viral / Q000032:analysis* / Q000235:genetics; D004195:Disease Models, Animal; D005821:Genetic Techniques; D014943:Global Health; D006801:Humans; D012106:Research / Q000458:organization & administration; D012899:Smallpox / Q000188:drug therapy / Q000517:prevention & control* / Q000821:virology; D012901:Variola virus / Q000187:drug effects / Q000235:genetics / Q000302:isolation & purification
chemical_list: D004279:DNA, Viral