My question is, why? What does it matter whether the virus originated from a lab or from a wet market - it isn't any more dangerous if it came from a lab, nor does knowing the origin really help dealing with this crisis at all.
It is certainly interesting to know where it did originate, and that knowledge could inform a debate on the future of (respectively) wet markets and animal husbandry practices, or BSL facilities, but these don't strike me as particularly emotionally charged topics, and in any case the posts I'm referring to don't mention these debates...
Anybody care to explain why you would respond so strongly to claims of lab origin?
What are you talking about? Zoonotic origin is the source of the majority of viruses:
> Approximately 60% of the known infectious diseases and 75% of the new emerging or re-emerging diseases infecting humans came from animals. SARS-CoV-2 is the latest addition to the seven coronaviruses found in humans, and experts said that all of these viruses either came from bats, mice, or domestic animals.
> More so, bats are the source of the Ebola virus, rabies, Nipah ad Hendra virus infections, Marburg virus disease, and influenza A virus.
https://www.sciencetimes.com/articles/26492/20200717/covid-1...
> An estimated 60% of known infectious diseases and up to 75% of new or emerging infectious diseases are zoonotic in origin (1,2). Globally, infectious diseases account for 15.8% of all deaths and 43.7% of deaths in low-resource countries (3,4). It is estimated that zoonoses are responsible for 2.5 billion cases of human illness and 2.7 million human deaths worldwide each year (5).
The lab was publishing research for many years. We know they grew bat viruses in HeLa cells that had been modified to have bat features. One would expect, as a simple matter of evolution, that the viruses would adapt to replicate without reliance on the bat features. It's breeding.
Now, is that zoonotic or engineered? Reasonable people could argue either way. Does the term we use matter so much? William Shakespeare wrote that "A rose by any other name would smell as sweet."
Either way, that is some seriously hazardous research with an obvious potential for permanent worldwide consequences. Somebody needed to say "NO".