The initial outbreak’s proximity to the Wuhan Institute of Virology raised the possibility that a lab leak may have caused it. The majority of scientists, however, supported a natural spread from bats to humans via an intermediary animal host at the nearby Huanan seafood market. However, neither bats nor any other animal that was purchased from a market had any immediate ancestor of SARS-CoV-2.
According to a recent preprint (a work that has not yet undergone peer review), the SARS-CoV-2 genome may include certain unique sequence patterns. These patterns might be proof that the virus underwent laboratory genetic engineering.
It must be emphasized that any plausible lab origin theory would entail an unintentional escape rather than malicious intent. Viruses cannot be used as bioweapons in the contemporary world. They are challenging to manufacture in bulk and to use. They take days to take effect, and if they can transmit from person to person, they may infect friendly forces as well as unwanted people.