it also happened with murres, the middle eastern virus and with things like nipah and hendra, which are other examples of spillover viruses from wildlife. on the whole, they start not very infectious, right? they're not very good at infecting people. it takes them a few months, adjust their genes to work out how to transmit from person to person. and to start with, you can only catch them from the other animal and then you can catch some of other people, but not very efficiently. and so on. this thing was different it was highly infectious between people. the get go a moment it appeared in the human species and it was highly transmissible and the weird about this is they looked really the chinese for an infected animal in the market and they haven't found one to this day. the pangolins were infected in that market they found a similar virus in pangolins that were confiscated but were other pangolins on sale in wuhan no raccoon dogs? nothing. so a. 998 to 99% genetically similar virus is. what you would expect to find in the market that's they found in sales. and so they found in murres