More evidence about the virus source

"Chinese scientists affiliated with the People's Liberation Army filed a patent for a Covid-19 vaccine in February 2020, with their research indicating they began working on a vaccine at least by November 2019, nearly two months before Beijing disclosed the Covid outbreak, according to a report on the virus compiled by Sen. Marco Rubio (R-Fla.) and his staff.

Additionally, Wuhan researchers filed for a patent in December 2019 for an "integrated system for use in biological protection" that would detect air pressure changes to maintain negative airflow and ensure that the lab operates safely.

The patent application also included data from between September and December 2019 indicating that the WIV was experiencing serious issues with its ventilation systems.

”The outbreak of an airborne viral pneumonia is one way that such problems could have become evident to the WIV leadership," the Rubio report states."

https://sharylattkisson.com/2023/05/report-early-chinese-vaccine-patents-adds-to-evidence-of-covid-lab-leak/?