Where Did the #Covid-19 Coronavirus Come From? Wuhan? Bats? Food Market? - Bloomberg
▻https://www.bloomberg.com/news/articles/2021-03-04/where-are-we-in-hunting-for-the-coronavirus-s-origin-quicktake
What are the hypotheses?
Scientists involved in the WHO-led mission identified four main ones:
the virus spilled over to humans directly from an animal reservoir;
the virus spilled over via an “intermediary” host species in which it may have undergone some adaptation, making it better suited to infecting humans and spreading from person to person;
the virus was introduced via the food chain by contaminated food or packaging;
the virus emerged as a result of a laboratory-related accident.
Their initial findings suggest that an intermediary host species is the most likely pathway. Since no such animal or animals have so far been found, they said more research is required, including into the potential role that the trade in animals, animal products and frozen or refrigerated products might have played.