After the reported death by<unk>  accident in 1978, all known stocks of the virus were destroyed. Today only the United States CDC and Russian State Research Center of Virology and Biotechnology VECTOR have the virus in their laboratories for research purposes.
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Smallpox future or investigational therapies
Smallpox case studies
Smallpox eradication
Zika virus infection travel notice
HIV condoms, needles, and negotiation
HIV coinfection with tuberculosis prevention
Smallpox epidemiology and demographics