The question asks us to identify which among the given parasitic helminths is a nematode and has zoonotic transmission.
- Let's first understand the characteristics of each option:
- Taenia saginata: This is a cestode (tapeworm) that can be acquired from undercooked beef.
- Trichinella spiralis: This is a nematode (roundworm) known to cause trichinosis. It is transmitted to humans through the consumption of undercooked or raw meat, especially pork, which contains the encysted larvae, making it zoonotic.
- Fasciola hepatica: This is a trematode (fluke) that causes fascioliasis, usually obtained from ingesting contaminated water or aquatic vegetation.
- Fasciolopsis buski: This is also a trematode and is known to cause fasciolopsiasis, contracted through contaminated water plants.
- The question specifies that we are looking for a nematode with zoonotic transmission. Based on the information above, we can identify Trichinella spiralis as the nematode that transmits zoonotically through meat consumption.
Thus, the correct answer is Trichinella spiralis.
Important Questions from Metazoan Infections
- Which among the following is the first intermediate host for the parasitic fluke Clonorchis sinensis?
Which among the following are hepatobiliary flukes (trematodes)?
1. Clonorchis sinensis
2. Mansonella perstans
3. Fasciola hepatica
4. Opisthorchis felineus
Select the correct answer using the code given below:
Which of the following statements are correct in respect of scabies?
1. Male mite Sarcoptes scabiei are commonly transferred from an infected person to a non-infected person.
2. Norwegian scabies occur in immunodeficient patients.
3. Permethrin cream (5%) is used for treatment.
4. Pruritus intensifies at night and after hot shower.
Select the answer using the code given below :
Consider the following statements with regard to cysticercosis :
1. It may present as personality change.
2. Subcutaneous nodule may excised for histology.
3. Cerebral signs commonly do not occur until the larvae die, 5-20 years later.
4. Praziquantel can be given for 10 days.
Which of the statements given above are correct?
Consider the following statements with regard to cutaneous larva migrans :
1. It is one of the commonest linear lesions seen in travellers.
2. It may be associated with a recent visit to a beach.
3. It is non-pruritic.
4. Track moves across the skin at a rate of 2-3 cm/day.
Which of the statements given above are correct?
