A US-funded laboratory origin of Covid-19 would certainly constitute the most significant case of governmental gross negligence in history. The people of the world deserve transparency and factual answers on vital questions.
In spring 2020, Richard Horton, editor of The Lancet, appointed Sachs as chair of its COVID-19 Commission, whose goals were to provide recommendations for public health policy and improve the practice of medicine. Sachs set up a number of task forces, including one on the origins of the virus.
Jeffery Sachs is a primary source on this issue: https://en.wikipedia.org/wiki/Jeffrey_Sachs#COVID-19
The Lancet is referenced over a dozen times on Wikipedia’s main COVID-19 page.