The SARS-COV-2 chimeric structure and furin cleavage site may be the result of genetic manipulation; the close relatives of SARS-COV-2 are bats and pangolin coronavirus; SARS-COV-2 shares its RBD with pangolin COV; Criticism of the "proximal origin of SARS-COV-2"; how did the virus escape from the laboratory? Recently, Fort Detrick’s Biosafety Level (BSL)-4 U.S. Army Institute of Infectious Diseases (USAMRIID) facility research activities were interrupted in August 2019 due to safety regulations, especially related to handling infectious materials The problem. xxii Other American laboratories are also cited for safety issues.
https://onlinelibrary.wiley.com/doi/full/10.1002/bies.202000240