3 ms·
I sort of think the most likely origin is that some pangolin farmer from the back end of rural Yunnan was the first host but the virus couldn't explode until so
by Symmetry 6y ago
I sort of think the most likely origin is that some pangolin farmer from the back end of rural Yunnan was the first host but the virus couldn't explode until someone went to bring the pangolins to market in a city with real crowds.
- adrianb 6y agoNot impossible, but how plausible is that a farmer sells his animals in a single location in a big city more than 1000 km away? More likely the animals would be sold closer to his farm or sold in multiple big cities igniting separate outbreaks with distinct lineages.
- Loughla 6y agoIn my experience, it is relatively plausible that the animals are sold in a single location, that far away. Granted, this is absolutely anecdata, but it does prove a point. My experience: For decades, my father, my grandfather, and my great grandfather sold cattle via the Chicago markets. This is a trip of around 1000 km. This also originally started when our part of the US would have been no different than a very backwater part of a developing nation. No roads, no rail, no infrastructure, really, until you got to within 400-500 km of Chicago from where we live. And yet, they moved cattle that far to one single marketplace.