Organisms

Visna-maedi virus

A species of LENTIVIRUS, subgenus ovine-caprine lentiviruses (LENTIVIRUSES, OVINE-CAPRINE), that can cause chronic pneumonia (maedi), mastitis, arthritis, and encephalomyelitis (visna) in sheep. Maedi is a progressive pneumonia of sheep which is similar to but not the same as jaagsiekte (PULMONARY ADENOMATOSIS, OVINE). Visna is a demyelinating leukoencephalomyelitis of sheep which is similar to but not the same as SCRAPIE.

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A species of LENTIVIRUS, subgenus ovine-caprine lentiviruses (LENTIVIRUSES, OVINE-CAPRINE), that can cause chronic pneumonia (maedi), mastitis, arthritis, and encephalomyelitis (visna) in sheep. Maedi is a progressive pneumonia of sheep which is similar to but not the same as jaagsiekte (PULMONARY ADENOMATOSIS, OVINE). Visna is a demyelinating leukoencephalomyelitis of sheep which is similar to but not the same as SCRAPIE.

MeSH Record

Classification

Broader headings

Related Concepts

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MeSH Record

Synonyms

6 entry terms
  • Maedi Virus
  • Maedi-Visna Virus
  • Visna Virus
  • Maedi Viruses
  • Maedi Visna Virus
  • Visna Maedi Virus

MeSH Record

Aspects Covered

13 allowable subheadings

Indexed with the subheadings chemistry, classification, drug effects, enzymology, genetics, growth & development, immunology, isolation & purification, metabolism, pathogenicity, physiology, radiation effects, ultrastructure.

MeSH Record

Indexing Annotation

infection = VISNA or MAEDI see PNEUMONIA, PROGRESSIVE INTERSTITIAL, OF SHEEP

MeSH Record

History Note

94; was VISNA VIRUS 1991-93; was VISNA-MAEDI VIRUSES 1975-90 (see under RNA VIRUSES 1975-77); VISNA-MAEDI VIRUS was see VISNA VIRUS 1991-93

MeSH Record

Previous Indexing

  • Pulmonary Adenomatosis, Ovine (1968-1972)
  • Scrapie (1968-1972)

MeSH Hierarchy

Tree Number

  1. B04w.820w.650w.589w.600.900w

AMA Style

References

  1. National Library of Medicine. Visna-maedi virus. Medical Subject Headings (MeSH). 2026. Unique ID D014790. http://id.nlm.nih.gov/mesh/2026/D014790
  2. Visna-maedi virus. In: Wikipedia. https://en.wikipedia.org/wiki/Visna-maedi_virus
  3. Visna-maedi virus. In: Wikidata. https://www.wikidata.org/wiki/Q51928610