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Question
Ascariasis is a ________ disease.
Ascariasis is a ________ disease.
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Solution
The correct option is D helminthic
Ascariasis is a disease caused by the roundworm, Ascaris lumbricoides. These worms belong to the phylum Nematoda or Nemathelminthes which makes ascariasis a helminthic disease.
Life cycle of the helminth as follows :
The worm eggs enter the intestine of humans through ingestion of water or food contaminated with the fecal matter of an infected person or through contact with contaminated soil (faecal-oral route transmission). These eggs mature into larvae that travel through the intestinal wall and reach the heart and lungs via blood or lymph. After maturing for about 10 to 14 days in the lungs, the larvae enter the airways and travel up the throat, where they are coughed up and swallowed. During this phase, symptoms such as cough and shortness of breath. can be seen.
As the larvae are swallowed, they reach the intestines again and grow into male and female worms. The female worms lay a huge number of eggs which leave the body through faeces. Thus fecal contamination of food, soil and water can transmit the disease. Presence of worms in the intestine can result in symptoms such as abdominal pain, internal bleeding, fever, anemia, blockage of the intestinal passage etc.
Example of a viral disease is chicken pox which is caused by the Varicella zoster virus.
Typhoid is a bacterial disease caused by Salmonella typhi.
Malaria is an example of a protozoan disease caused by the Plasmodium sp.
Ascariasis is a disease caused by the roundworm, Ascaris lumbricoides. These worms belong to the phylum Nematoda or Nemathelminthes which makes ascariasis a helminthic disease.
Life cycle of the helminth as follows :
The worm eggs enter the intestine of humans through ingestion of water or food contaminated with the fecal matter of an infected person or through contact with contaminated soil (faecal-oral route transmission). These eggs mature into larvae that travel through the intestinal wall and reach the heart and lungs via blood or lymph. After maturing for about 10 to 14 days in the lungs, the larvae enter the airways and travel up the throat, where they are coughed up and swallowed. During this phase, symptoms such as cough and shortness of breath. can be seen.
As the larvae are swallowed, they reach the intestines again and grow into male and female worms. The female worms lay a huge number of eggs which leave the body through faeces. Thus fecal contamination of food, soil and water can transmit the disease. Presence of worms in the intestine can result in symptoms such as abdominal pain, internal bleeding, fever, anemia, blockage of the intestinal passage etc.
Example of a viral disease is chicken pox which is caused by the Varicella zoster virus.
Typhoid is a bacterial disease caused by Salmonella typhi.
Malaria is an example of a protozoan disease caused by the Plasmodium sp.
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