https://www.mayoclinic.org at September 22, 2020 (Potencial Biological warfare)
Samples of smallpox virus have been kept for research purposes. And advances in synthetic biology have made it possible to create smallpox from published amino acid sequences. This has led to concerns that smallpox could someday be used as a biological warfare agent.
https://www.cdc.gov at February 20, 2021 (Spread of Smallpox)
Historians trace the global spread of smallpox to the growth of civilizations and exploration.
Expanding trade routes over the centuries also led to the spread of the disease.
https://www.loc.gov
Among the Continental regulars in the American Revolution, 90 percent of deaths were caused by disease, and Variola the small pox virus was the most vicious of them all. (Gabriel and Metz 1992, 107)
https://news.yahoo.com at November 17, 2021 (FBI are Investigating)
The FBI and the Centers for Disease Control and Prevention are investigating “questionable vials” labeled "smallpox" and found in a freezer last night at a Merck facility outside Philadelphia, according to an alert sent to Department of Homeland Security leadership on Tuesday night.
That is Merck facility outside Philadelphia, Check their web address https://www.merck.com/, also in https://www.merckgroup.com.
https://www.nytimes.com at November 18, 2021 (Refute)
Centers for Disease Control Says ‘Smallpox’ Vials Found in Lab Did Not Contain Disease-Causing Virus
