So what are you saying?
a) The scientists were just doing research on the virus and it accidentally transferred to humans or
b) They genetically engineered the virus and it then transferred to humans (due to inadequate personal protection?
I am surprised that apparently China only has one BSL-4, while ...
- Brazil, Belarus, Switzerland, Sweden, South Africa and even Gabon also have one each
- India and Australia both have 2
- GB has at least 3
- Germany has at least 4
- The US has 14 that are planned/currently active
I am also not sure how „clever“ it is to have a laboratory like that in a big city, but apparently it is the same in other countries. Germany for example has one BSL-4 in Hamburg and one in Berlin, the US has one in San Antonio, one in Boston and one in Atlanta, Brazil has one in São Paulo, France has one in Lyon, GB has one in London, Italy has one in Rome, Belarus has one in Minsk, Russia has one in Moscow, India has one in Hyderabad, Australia has one in Melbourne and Japan has one in Tokyo.