Medical Parasitology: Phylum Platyhelminthes

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What is the main mode of diagnosis for Fascioliasis?

Recovery and identification of eggs in stool specimens

What is the recommended treatment for Fascioliasis?

Bithinol

How can Fasciola gigantica be distinguished from F.hepatica?

By its larger size, potentially reaching a length of 75 mm

What is the primary habitat that should be avoided for growing watercress and other water vegetation to prevent Fascioliasis?

Water to which herbivores have access Signup and view all the answers

What type of parasites are Schistosomes, which cause Schistosomiasis or Bilharziasis?

Digenetic trematodes belonging to the Phylum Platyhelminthes Signup and view all the answers

Why is proper disposal of faecal waste crucial in controlling Fascioliasis?

To prevent the spread of the parasite through contaminated water and soil Signup and view all the answers

What are the common symptoms of Schistosomiasis?

Dermatitis, headache, chills, fever, diarrhea, and eosinophilia. Signup and view all the answers

What is the characteristic feature of S.haematobium eggs in urine?

They have a terminal spine. Signup and view all the answers

What is the effect of Schistosomiasis on the liver?

It causes periportal fibrosis and portal hypertension resulting in hepatomegaly and splenomegaly. Signup and view all the answers

What is the effective treatment against all species of schistosomes?

Praziquantel. Signup and view all the answers

What is the main mode of transmission of Schistosomiasis?

Through contact with contaminated water containing cercariae. Signup and view all the answers

What is the association between Schistosomiasis and bladder cancer?

In endemic areas, most bladder cancers are associated with chronic Schistosomiasis infection. Signup and view all the answers

What is the classification of trematodes in the Phylum Platyhelminthes?

Trematoda, or flukes, constitute one class of the Phylum Platyhelminthes. Signup and view all the answers

What is unique about the sexes of the Family Schistosomatidae among digenean trematodes?

The sexes are separated in the Family Schistosomatidae. Signup and view all the answers

How can humans acquire Clonorchis, Fasciola, and Paragonimus infections?

By eating uncooked or improperly cooked food items from endemic areas, contaminated with metacercariae. Signup and view all the answers

What is the estimated number of people at risk of acquiring foodborne infections by Clonorchis, Fasciola, and Paragonimus?

More than 980 million people around the world. Signup and view all the answers

What is the medical significance of Schistosoma mansoni, S. japonicum, and S. hematobium?

They are the most important trematodes from a clinical point of view. Signup and view all the answers

What is the relationship between trematode infections and water and faecal waste management?

Improper management of water and faecal waste can lead to the spread of trematode infections. Signup and view all the answers