Pandemic Timeline - HTF do you map a 30,000 nucleotide RNA sequence in 14 days

In 2020, I created a timeline using scientific papers and Wikipedia articles about the COVID-19 pandemic. As of 2025, General consensus from USA agencies is that COVID-19 was a lab leak. This means that a lab worker was infected from the BSL-4 lab in Wuhan. We can only speculate that he/she would have had respiratory symptoms and would have been unable to work. A BSL-4 lab working gain of function research on coronaviruses should have or ought to have tested the lab worker for coronaviruses. If the worker was N-0 , then the guy who visited the Wuhan market want N-0. So Chinese authorities either didn't concern themself with a sick lab worker or hid it from the US scientists dispatched from the Wuhan embassy and the WHO investigators.