Visceral larva migrans, Biology


Visceral larva migrans


Visceral larva migrans, also known as larval granulomatosis, is a clinical syndrome produced by the extra-intestinal migration of larval nematodes and is characterized by chronic granulomatous lesions. The disease is prevalent throughout the world including  India. It is caused by larvae of mainly Toxocara canis or some times T. cati. The dogs and cats are the principal reservoir hosts. The man acquires the infection by ingestion of eggs through contaminated dust. The eggs are hatched in the intestine and larvae migrate to other organs. The condition is usually seen in children of 1-5 years of age as they have a habit of dirt eating and playing at the places where soil is heavily contaminated. The liver and lungs are mainly affected; however, some times brain and eyes also get involved. The related clinical signs include pneumonia, dyspnoea, fever, coughing, loss of appetite, vomiting, convulsion, chorioretinitis, persistent eosinophilia and hepatomegaly.


The demonstration of larvae in biopsies of affected organs confirms the diagnosis. The condition can be diagnosed by seeing the elevated tortuous character of the tunnels under the skin. Complement fixation, immunofluorescence, indirect haemagglutination and ELISA are used for serodiagnosis. The public health education for personal hygiene, prophylaxis in dogs and cats and avoidance of contact with infected dogs, cats and contaminated places are the important preventive measures.

Posted Date: 9/20/2012 3:23:00 AM | Location : United States







Related Discussions:- Visceral larva migrans, Assignment Help, Ask Question on Visceral larva migrans, Get Answer, Expert's Help, Visceral larva migrans Discussions

Write discussion on Visceral larva migrans
Your posts are moderated
Related Questions
What is the importance of vitamin A The importance of vitamin A is undisputable. You may already be aware about the functions/role of vitamin A in our body.  Vitamin A is absol

Growth Charts Management alone without any standard of comparison do not serve useful purpose. A number of standards have been developed to compare the measurement of any

How many asymmetric carbons are there in ribose and glucose?


What is the tertiary structure of a protein? What are the main kinds of tertiary structure? The tertiary protein structure is a spatial conformation additional to the secondary

What are the androecium and the gynoecium? What are the other structures of flowers? Androecium is the set of male reproductive structures of flowers. It comprehends the stamen

Non-threshold  approaches For  genetic carcinogenes, the  "NOEL-safety factor"  approach  is generally  not considered a suitable method for setting the acceptable intake level

Hipot is an abbreviation for high potential. Usually, Hipot is a term given to a class of electrical safety testing instruments used to confirm electrical insulation in finished ap

wine turns sour beause of the action of which bacteria? aerobic or anerobic?

Bleeding Bleeding from injury to small blood vessels pushed along the lateral wall of expanding maxillary sinus should be contained by bone wax or electrocautery rather than cr