https://pmc.ncbi.nlm.nih.gov/articles/PMC104317/
A New Group of Hepadnaviruses Naturally Infecting Orangutans (Pongo pygmaeus) - PMC
A high prevalence (42.6%) of hepatitis B virus (HBV) infection was suspected in 195 formerly captive orangutans due to a large number of serum samples which...
a newgroup ofpongo pygmaeushepadnaviruses
https://animaldiversity.org/accounts/Pongo_pygmaeus/
Pongo pygmaeus (Bornean orangutan) | INFORMATION | Animal Diversity Web
pongo pygmaeusbornean orangutaninformationanimaldiversity