{"topic_id":"exotic_vaccine_petbird","category":"exotic-pet-health","context":"---\ntopic_id: \"exotic_vaccine_petbird\"\ncategory: \"exotic-pet-health\"\ntitle: \"Pet bird vaccines: avian polyomavirus, Pacheco's disease, Newcastle disease (Merck Veterinary Manual)\"\nlang: en\nsource: \"Merck Veterinary Manual (viral diseases of pet birds) — non-Open-Access vet reference; paraphrased derived summaries per COPYRIGHT_POLICY §3.\"\nsource_file: [\"pdf-raw/exotic-c-2026/merck_bird_viral.txt\"]\ndate_parsed: 2026-08-05\nrecovered: false\nauthority_tier: T2\nauthority_tier_basis: \"T2:professional-reference\"\nauthority_tier_date: 2026-08-05\nmethod: paraphrase\nlicense: paraphrase\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Pet bird vaccines: avian polyomavirus, Pacheco's disease, Newcastle disease (Merck Veterinary Manual)\"\n  url: \"https://www.merckvetmanual.com/exotic-and-laboratory-animals/pet-birds/viral-diseases-of-pet-birds\"\n  retrieved: 2026-08-05\n  needs_review: false\npath: exotic-pet-health/exotic_vaccine_petbird/01_exotic_vaccine_petbird.md\n---\n\n# Pet bird vaccines: avian polyomavirus, Pacheco's disease, Newcastle disease (Merck Veterinary Manual)\n\nSource: first-hand veterinary reference (Merck Veterinary Manual). This reference is non-Open-Access, so the points below are **paraphrased derived summaries** (numbers and proper nouns preserved, sentences rewritten) per COPYRIGHT_POLICY §3; each point is independently checkable against the cited source.\n\n## Claims (derived summary — method: paraphrase)\n\n- Avian polyomavirus (APV) causes disease in young parrots, and polyomavirus vaccination is performed; breeding birds receive two doses of the vaccine at a 2-week interval.\n- Pacheco's disease is caused by a herpesvirus, and during outbreaks autogenous vaccines have been developed.\n- Newcastle disease is an avian paramyxovirus infection that is rare in captive-bred parrots housed indoors; the paramyxovirus group 1 vaccine should not be used in parrots.\n- Vaccines for canarypox, fowlpox, and pigeonpox are available for birds.\n- Pet birds should be obtained only from sources where polyomavirus testing and vaccination are performed.\n","sources":["exotic-pet-health — Pet bird vaccines: avian polyomavirus, Pacheco's disease, Newcastle disease (Merck Veterinary Manual) (retrieved 2026-08-05)"],"source":{"authority":"exotic-pet-health","title":"Pet bird vaccines: avian polyomavirus, Pacheco's disease, Newcastle disease (Merck Veterinary Manual)","url":"https://www.merckvetmanual.com/exotic-and-laboratory-animals/pet-birds/viral-diseases-of-pet-birds","retrieved":"2026-08-05","ref":"","doc_type":"official PDF","source_document":"","verification_file":"[\"pdf-raw/exotic-c-2026/merck_bird_viral.txt\"]"},"source_document":"","source_file":"[\"pdf-raw/exotic-c-2026/merck_bird_viral.txt\"]","trust":{"authority_tier":"T2","fidelity":"paraphrase","license":"paraphrase","display_grade":"B"},"tokens_estimated":110,"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."}