Since the identification of theSARS-CoV-2 in Wuhan, China, in January 2020 (1), the origin of the virus has been a topic of intense scientific debate and public speculation. The two main hypotheses are that the virus emerged from human exposure to an infected animal [“zoonosis” (2)] or that it emerged in a research-related incident https://www.pnas.org/doi/10.1073/pnas.2202769119 See also " Unrestricted Warfare "  at Wikipedia