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Discussion Forum : Basic General Knowledge - Section 1 (Q.No. 41)
41.
Filaria is caused by
Discussion:
46 comments Page 1 of 5.
Suhana said:
1 decade ago
Ilariasis (philariasis) is a parasitic disease (usually an infectious tropical disease) that is caused by thread-like nematodes (roundworms) belonging to the superfamily Filarioidea, [1] also known as "filariae". [2] These are transmitted from host to host by blood-feeding arthropods, mainly black flies and mosquitoes.
Eight known filarial nematodes use humans as their definitive hosts. These are divided into three groups according to the niche within the body they occupy: 'lymphatic filariasis', 'subcutaneous filariasis', and 'serous cavity filariasis'.
Lymphatic filariasis is caused by the worms Wuchereria bancrofti, Brugia malayi, and Brugia timori. These worms occupy the lymphatic system, including the lymph nodes, and in chronic cases these worms lead to the disease elephantiasis.
Subcutaneous filariasis is caused by Loa loa (the eye worm) , Mansonella streptocerca, and Onchocerca volvulus. These worms occupy the subcutaneous layer of the skin, in the fat layer. L. Loa causes Loa loa filariasis while O. Volvulus causes river blindness.
Serous cavity filariasis is caused by the worms Mansonella perstans and Mansonella ozzardi, which occupy the serous cavity of the abdomen.
The adult worms, which usually stay in one tissue, release early larvae forms known as microfilariae into the host's bloodstream. These circulating microfilariae can be taken up with a blood meal by the arthropod vector; in the vector they develop into infective larvae that can be transmitted to a new host.
Individuals infected by filarial worms may be described as either "microfilaraemic" or "amicrofilaraemic", depending on whether or not microfilaria can be found in their peripheral blood. Filariasis is diagnosed in microfilaraemic cases primarily through direct observation of microfilaria in the peripheral blood. Occult filariasis is diagnosed in amicrofilaraemic cases based on clinical observations and, in some cases, by finding a circulating antigen in the blood.
Eight known filarial nematodes use humans as their definitive hosts. These are divided into three groups according to the niche within the body they occupy: 'lymphatic filariasis', 'subcutaneous filariasis', and 'serous cavity filariasis'.
Lymphatic filariasis is caused by the worms Wuchereria bancrofti, Brugia malayi, and Brugia timori. These worms occupy the lymphatic system, including the lymph nodes, and in chronic cases these worms lead to the disease elephantiasis.
Subcutaneous filariasis is caused by Loa loa (the eye worm) , Mansonella streptocerca, and Onchocerca volvulus. These worms occupy the subcutaneous layer of the skin, in the fat layer. L. Loa causes Loa loa filariasis while O. Volvulus causes river blindness.
Serous cavity filariasis is caused by the worms Mansonella perstans and Mansonella ozzardi, which occupy the serous cavity of the abdomen.
The adult worms, which usually stay in one tissue, release early larvae forms known as microfilariae into the host's bloodstream. These circulating microfilariae can be taken up with a blood meal by the arthropod vector; in the vector they develop into infective larvae that can be transmitted to a new host.
Individuals infected by filarial worms may be described as either "microfilaraemic" or "amicrofilaraemic", depending on whether or not microfilaria can be found in their peripheral blood. Filariasis is diagnosed in microfilaraemic cases primarily through direct observation of microfilaria in the peripheral blood. Occult filariasis is diagnosed in amicrofilaraemic cases based on clinical observations and, in some cases, by finding a circulating antigen in the blood.
Aastha said:
1 decade ago
Filariasis (or philariasis) is a parasitic disease caused by an infection with roundworms of the Filarioidea type. These are spread by blood-feeding black flies and mosquitoes. This disease belongs to the group of diseases called helminthiasis.
Eight known filarial nematodes use humans as their definitive hosts. These are divided into three groups according to the niche within the body they occupy:
Lymphatic filariasis is caused by the worms Wuchereria bancrofti, Brugia malayi, and Brugia timori. These worms occupy the lymphatic system, including the lymph nodes; in chronic cases, these worms lead to the disease elephantiasis.
Subcutaneous filariasis is caused by Loa loa (the eye worm), Mansonella streptocerca, and Onchocerca volvulus. These worms occupy the subcutaneous layer of the skin, in the fat layer. L.Loa causes Loa loa filariasis, while O.Volvulus causes river blindness.
Serous cavity filariasis is caused by the worms Mansonella perstans and Mansonella ozzardi, which occupy the serous cavity of the abdomen. @Sundar totally right!
Eight known filarial nematodes use humans as their definitive hosts. These are divided into three groups according to the niche within the body they occupy:
Lymphatic filariasis is caused by the worms Wuchereria bancrofti, Brugia malayi, and Brugia timori. These worms occupy the lymphatic system, including the lymph nodes; in chronic cases, these worms lead to the disease elephantiasis.
Subcutaneous filariasis is caused by Loa loa (the eye worm), Mansonella streptocerca, and Onchocerca volvulus. These worms occupy the subcutaneous layer of the skin, in the fat layer. L.Loa causes Loa loa filariasis, while O.Volvulus causes river blindness.
Serous cavity filariasis is caused by the worms Mansonella perstans and Mansonella ozzardi, which occupy the serous cavity of the abdomen. @Sundar totally right!
Sundar said:
1 decade ago
@All
You are all correct.
Filaria: A threadlike parasitic nematode worm transmitted by biting flies and mosquitoes, causing filariasis and related diseases.
Since Mosquitoes also being a part to to cause (by transmitting) Filaria AND in the provided options, there is no option called 'Worm', we have to choose 'Mosquito'. That's it.
Assume: A man used a knife to kill a dog. Now answer me, The dog was killed by ?
A. Knife
B. A Man
C. None of these
Ans: ?????
Have a nice day!
You are all correct.
Filaria: A threadlike parasitic nematode worm transmitted by biting flies and mosquitoes, causing filariasis and related diseases.
Since Mosquitoes also being a part to to cause (by transmitting) Filaria AND in the provided options, there is no option called 'Worm', we have to choose 'Mosquito'. That's it.
Assume: A man used a knife to kill a dog. Now answer me, The dog was killed by ?
A. Knife
B. A Man
C. None of these
Ans: ?????
Have a nice day!
Manthan Moudgalya said:
2 years ago
Filariasis is a parasitic disease caused by thread-like worms that live in the lymphatic system. The lymphatic system is a network of vessels that help to drain excess fluid from the body.
Filaria worms can cause a variety of symptoms, including swelling, pain, and inflammation. In severe cases, filaria can lead to elephantiasis, a condition characterized by the abnormal enlargement of body parts.
Filaria worms can cause a variety of symptoms, including swelling, pain, and inflammation. In severe cases, filaria can lead to elephantiasis, a condition characterized by the abnormal enlargement of body parts.
(1)
Bhagyashree said:
1 decade ago
I guess the answer given here is wrong.
I m science student n in my reference books it is given that filaria is caused by a nematode infection and the causative agent is wuchereria bancrofti, brugia malayi, and brugia timor more offend. This is not a mosquito. I may be wrong but this is what I have read. I am sorry if the information which I have supplied is wrong.
Thank you.
I m science student n in my reference books it is given that filaria is caused by a nematode infection and the causative agent is wuchereria bancrofti, brugia malayi, and brugia timor more offend. This is not a mosquito. I may be wrong but this is what I have read. I am sorry if the information which I have supplied is wrong.
Thank you.
KN Bhati said:
1 decade ago
Filariasis/Filaria is caused by the worms Wuchereria bancrofti, Brugia malayi, and Brugia timori, which fall under PROTOZOA category and Culex Mosquitoes are transporter of the worm from one human to another just like the Malaria. Hence Protozoa is the correct answer in this question.
Bhavana said:
1 decade ago
See sundar. If a man kills the dog with a knife. Then the man was the one to kill. The knife was just an instrument. If mosquitoes are transmitting it, the worms are the culprit. The are the one who give birth to this disease. This is the answer to your question. Have a good day!
Nisha said:
1 decade ago
@Kn bhati is absolutely right.
Filariasis is caused by the worm Wuchereria bancrofti, which falls under the category of protozoans. So the correct answer is (C) protozoa.
Mosquito(culex) is just the transmitter of the worm to the host organism.
Filariasis is caused by the worm Wuchereria bancrofti, which falls under the category of protozoans. So the correct answer is (C) protozoa.
Mosquito(culex) is just the transmitter of the worm to the host organism.
Sam said:
10 years ago
Filariasis (orphilariasis) is a parasitic disease caused by an infection with round worms of the Filarioideatype. These are spread by blood-feeding black flies and mosquitoes. This disease belongs to the group of diseases called helminthiasis.
Kamran said:
1 decade ago
The Filarioidea are a superfamily of nematodes (roundworms). The members of this superfamily are known as filarial worms. Infections with parasitic filarial worms cause filariasis. Drugs against these worms are known as filaricides
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