Visceral larva migrans, Biology

Assignment Help:


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.


Related Discussions:- Visceral larva migrans

Explain microbial sources of natural colourants, Novel Sources of Natural C...

Novel Sources of Natural Colourants Microbial sources Production of materials by microbial cultures has several advantages. The rapid growth of microbes cuts the productio

Electron transport chain, ELECTRON TRANSPORT CHAIN All processes requir...

ELECTRON TRANSPORT CHAIN All processes require energy. In living cells, we constantly use energy for a number of biochemical reactions e.g. muscular movements, synthesis  of ne

What are some examples of parasitism, Q. What are some examples of parasiti...

Q. What are some examples of parasitism? The Classical instances are the parasites of humans (host), like the trypanosome that causes Chagas' disease, the HIV virus (AIDS), the

Cells, what happens in meiosis in prophase 1?

what happens in meiosis in prophase 1?

Explain sinus venosus defect with partial anomalous venous, Explain Sinus V...

Explain Sinus Venosus Defect with Partial Anomalous Venous Connection ? In this defect the atrial septal defect is situated just below the orifice of superior vena cava above

Percentage of reducing and total sugar by fehling soxhlet, Principle for Es...

Principle for Estimation of Percentage of Reducing and Total Sugar by Fehling Soxhlet Method? Reducing sugars are those which have free sugar groups and hence may be estimated

What is hyperhomocysteinaemia, What is Hyperhomocysteinaemia ? Homocyst...

What is Hyperhomocysteinaemia ? Homocysteine has been considered as a risk factor for Cardio-vascular diseases because of many epidemiological and observational studies showing

Define institutional and cultural barriers - infuse biology, Define Institu...

Define Institutional and Cultural Barriers - Infuse Biology? Inside the university, the departmental promotion and tenure committees understand well the value of contribution t

Digestion in coakroach, Awhat is the function of malpigrium tubulessk quest...

Awhat is the function of malpigrium tubulessk question #Minimum 100 words accepted#

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd