I think this is an economic barrier more than a scientific one (not that the science is trivial). MERS is too sporadic. SARS burnt out to quickly to substantia

I think this is an economic barrier more than a scientific one (not that the science is trivial). MERS is too sporadic. SARS burnt out to quickly to substantially test anything clinically, and if you look at the scientifc literature, interest in SARS dropped pretty quickly. I’m general neither industry or investors or government funding has that much interest in Infectious disease (vs cancer for instance). Pandemic preparedness was a horrible business plan.