Other Hepatitis

Woolly monkey hepatitis B virus is a viral species classified within the Orthohepadnavirus genus of the Hepadnaviridae family. As a distinct hepatitis virus, WMHBV specifically targets the hepatocytes, or liver cells, of its natural host organism. The virus is categorized as a New World primate hepatitis virus endemic to South American woolly monkey populations.

WMHBV exhibits hepatotropism, infecting and damaging liver cells in infected woolly monkeys. The clinical spectrum includes hepatitis, characterized by liver inflammation, as well as more severe outcomes such as liver necrosis. Chronic infection may progress to cirrhosis and hepatocellular carcinoma, mirroring pathological patterns observed with other hepatitis viruses. The source does not provide detail on acute versus chronic disease timelines or clinical prognosis.

WMHBV is endemic to South American woolly monkey populations, with the woolly monkey genus (Lagothrix) serving as the natural reservoir host. All species within this genus are currently classified as threatened or endangered, which limits research opportunities and complicates population-level surveillance. The source does not provide data on prevalence, geographic distribution beyond South America, or spillover potential to other species.

Source-backed detail on transmission routes for WMHBV is not yet available. The source identifies hepatocytes as the primary target cell type but does not describe mechanisms of viral spread between hosts or environmental persistence.

Woolly monkeys (Lagothrix species) are the documented natural host and primary risk group for WMHBV infection. The source does not provide information on susceptibility in other primate species or potential zoonotic risk to humans. Conservation researchers working directly with woolly monkeys may have occupational exposure potential, though this is not explicitly addressed in the source material.

Source-backed detail on prevention measures for WMHBV is not yet available. The source notes that vaccine or treatment development is important for woolly monkey conservation but does not specify what prevention strategies currently exist or are under investigation.

WMHBV surveillance occurs primarily within conservation and research contexts focused on captive or wild woolly monkey populations. There is no established human surveillance framework for this virus, as the source does not document zoonotic transmission to humans. Monitoring in non-human primate populations may provide ecological insights but does not directly inform human public health assessment.

1. 1 Wikipedia. Woolly monkey hepatitis B virus.

ICD-10

B19

ICD-11

1E50.Y

Total cases

379K

Total deaths

140

Peak month

2011-03

Coverage

1 reporting countries · 2010-01-01 → 2026-04-01