@Smokin Joe @Once-Ler Some of the first epidemiology papers I read indicated that this virus has the earmarks of being an "old" virus. Meaning that when it first appeared in horseshoe bats it didn't take. A least before the "herd immunity" of horseshoe bats stopped it. So it didn't have the time or abliity for cross-species adaptations.
Immune systems constantly adapt to the constant adaptations of bacteria and viruses.
History lesson.
Published in final edited form as:
Crit Care Med. 2010 Apr; 38(4 Suppl): e10–e20.
doi: 10.1097/CCM.0b013e3181ceb25b
PMCID: PMC3180813
NIHMSID: NIHMS320487
PMID: 20048675
The 1918 influenza pandemic: Lessons for 2009 and the future
David M. Morens, MD, Jeffery K. Taubenberger, MD, PhD, Hillery A. Harvey, PhD, and Matthew J. Memoli, MD, MS
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3180813/This virus, from what I can glean, doesn't exhibit natural adaptation.
Later here and lately all these other experts are saying otherwise.
What do they say about first impressions?