Well, duh! It’s gotta be named hepatitis V, or hepatitis C19.
Everyone sits around and scratches their heads while the obvious question is were any of them vaxed? My guess is yes. Then check with Dr. Ardis to see what organs snake venom attacks. My guess is that one organ can be the liver. Then ask Dr. Ardis what are the reported antivenom treatments. He has said to treat all vax cases as you would a snake bite.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4174607/