He seems more interested in how bat coronaviruses where they are enteric viruses become human respiratory viruses. Understanding how they work in bats and their unique immune systems helps with that. Indeed, the more I understand about bats immune systems the idea of vaccines working very well seems low, and using a full length coronavirus would be very risky due to recombination.
That 2017 Orf paper by Baric referenced Linfa Wang 4 times. Baric even discussed "protease cleavage" for his bat research.
https://pmc.ncbi.nlm.nih.gov/articles/PMC5474123/
He seems more interested in how bat coronaviruses where they are enteric viruses become human respiratory viruses. Understanding how they work in bats and their unique immune systems helps with that. Indeed, the more I understand about bats immune systems the idea of vaccines working very well seems low, and using a full length coronavirus would be very risky due to recombination.
Good point but that's why he published the "national security" LAV bat vax paper using UGGUCGC and referenced the Mojiang mineshaft.
https://www.nature.com/articles/s42003-018-0175-7