{"topic_id":"exotic_hamster_polyomavirus_lymphoma","category":"exotic-pet-health","context":"---\ntopic_id: exotic_hamster_polyomavirus_lymphoma\ncategory: exotic-pet-health\ntitle: \"Hamster polyomavirus (HaPV) — epizootic lymphoma in young Syrian hamsters; up to 80% incidence\"\nlang: en\nsource: \"Merck Veterinary Manual — Hamster polyomavirus (HaPV) — epizootic lymphoma in young Syrian hamsters; up to 80% incidence\"\nsource_file: pdf-raw/exotic-health/mvm_hamster.txt\ndate_parsed: 2026-07-28\ntokens_estimated: 88\nverified: true\nverification: c1_substring\nsource_document: \"Merck Veterinary Manual (professional veterinary reference)\"\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Hamster polyomavirus (HaPV) — epizootic lymphoma in young Syrian hamsters; up to 80% incidence\"\n  url: \"https://www.merckvetmanual.com/exotic-and-laboratory-animals/rodents/hamsters\"\n  retrieved: \"2026-07-28\"\n  ref: \"\"\n  doc_type: \"professional veterinary reference\"\n  needs_review: false\n---\n\n# Hamster polyomavirus (HaPV)\n\nThe text below is reproduced verbatim from the first-hand source (Merck Veterinary Manual).\n\n>Hamster polyomavirus (HaPV) is the cause of epizootic lymphoma in young Syrian hamsters and epitheliomas in older, enzootically infected hamsters.\n>When first introduced into a naive population of breeding Syrian hamsters, HaPV results in an epizootic of lymphoma, with an incidence of up to 80% ( 2 ).\n\nSource: `pdf-raw/exotic-health/mvm_hamster.txt` (first-hand professional veterinary reference, tag-stripped).\n\n## Claims (verified C1 substrings of source_file)\n- `Hamster polyomavirus (HaPV) is the cause of epizootic lymphoma in young Syrian hamsters and epitheliomas in older, enzootically infected hamsters.`\n- `When first introduced into a naive population of breeding Syrian hamsters, HaPV results in an epizootic of lymphoma, with an incidence of up to 80% ( 2 ).`\n","sources":["exotic-pet-health — Hamster polyomavirus (HaPV) — epizootic lymphoma in young Syrian hamsters; up to 80% incidence (retrieved 2026-07-28)"],"source":{"authority":"exotic-pet-health","title":"Hamster polyomavirus (HaPV) — epizootic lymphoma in young Syrian hamsters; up to 80% incidence","url":"https://www.merckvetmanual.com/exotic-and-laboratory-animals/rodents/hamsters","retrieved":"2026-07-28","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual (professional veterinary reference)","verification_file":"pdf-raw/exotic-health/mvm_hamster.txt"},"source_document":"Merck Veterinary Manual (professional veterinary reference)","source_file":"pdf-raw/exotic-health/mvm_hamster.txt","tokens_estimated":88,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}