Difference between revisions of "Category:Filarioidea"

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The filarial worms are of great importance in human medicine in the tropics, causing diseases such as elephantitis and river blindness, but their veterinary interest is limited - with the important exception of ''Dirofilaria'', the canine heartworm, which is a major cause of morbidity and death in warmer, humid regions (including parts of the USA, Australia, southern Europe etc.).
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The filarial worms are of great importance in human medicine in the tropics, causing diseases such as elephantitis and river blindness, but their veterinary interest is limited - with the important exception of ''Dirofilaria'', the canine heartworm, which is a major cause of morbidity and death in warmer, humid regions (including parts of the USA, Australia, southern Europe etc.).
 
  
 
== General Appearance ==
 
== General Appearance ==
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→ larvae develop and migrate to predilection site in final host
 
→ larvae develop and migrate to predilection site in final host
  
 
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[[Category:Non-Bursate Nematodes]]
 
[[Category:Non-Bursate Nematodes]]
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[[Category:To_Do_-_Parasites]]

Latest revision as of 22:05, 25 June 2010

Filarioidea

The filarial worms are of great importance in human medicine in the tropics, causing diseases such as elephantitis and river blindness, but their veterinary interest is limited - with the important exception of Dirofilaria, the canine heartworm, which is a major cause of morbidity and death in warmer, humid regions (including parts of the USA, Australia, southern Europe etc.).


General Appearance

  • Non-bursate
  • Typically, they are long (up to 12cm or more), but filamentous
  • Live in connective tissues
    • The most important veterinary species is Dirofilaria immitis which lives in the right heart and pulmonary arteries

General Life-Cycle

  • The females of most species do not produce eggs, but instead they produce motile embryos (microfilariae)
  • Female worm → microfilariae → accumulate in blood or tissue fluid

→ taken up by biting arthropod intermediate host

→ L1 → L2 → L3

→ enters wound

→ larvae develop and migrate to predilection site in final host

Pages in category "Filarioidea"

The following 7 pages are in this category, out of 7 total.