After it spilled over naturally, it became the subject of intense study, sometimes in labs with poor procedures. Huge amounts of SARS-CoV were being cultured by people with little training.
That's an entirely different circumstance from now. The lab where they study coronaviruses in Wuhan operates at a much higher standard than poorly run Chinese labs in 2004. The lab in Wuhan wasn't even conceived back then.
It's essentially proven that SARS-CoV-2 was not under study before the outbreak, because the it's not in any of the standard databases where all known coronaviruses are published. But even disregarding that, the idea that huge quantities of a virus that nobody has ever heard of would be cultured is implausible.
After it spilled over naturally, it became the subject of intense study, sometimes in labs with poor procedures. Huge amounts of SARS-CoV were being cultured by people with little training.
That's an entirely different circumstance from now. The lab where they study coronaviruses in Wuhan operates at a much higher standard than poorly run Chinese labs in 2004. The lab in Wuhan wasn't even conceived back then.
It's essentially proven that SARS-CoV-2 was not under study before the outbreak, because the it's not in any of the standard databases where all known coronaviruses are published. But even disregarding that, the idea that huge quantities of a virus that nobody has ever heard of would be cultured is implausible.