Question:
Trichinellosis is usually transmitted to human by consumption of:
Trichinellosis is usually transmitted to human by consumption of:
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Trichinella spiralis is a classic parasite of swine.
Undercooked pork remains the primary dietary source of human trichinellosis cases worldwide.
Undercooked pork remains the primary dietary source of human trichinellosis cases worldwide.
Updated On: Aug 24, 2026
- Pork
- Mutton
- Beef
- Chevron
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
Trichinellosis (or trichinosis) is a major parasitic zoonosis caused by nematodes of the genus Trichinella, most commonly Trichinella spiralis.
It is transmitted to humans through the ingestion of raw or undercooked meat containing infective, encysted larvae.
Step 2: Detailed Explanation:
Let us look at the primary host and transmission pathways of Trichinella:
- Trichinella spiralis has a broad host range among carnivores and omnivores.
- Domestic pigs are the primary reservoir hosts in the domestic cycle of the parasite.
- Humans acquire the infection almost exclusively by consuming raw, inadequately cooked, or poorly cured pork products containing viable, encysted larvae in the muscle tissue.
- Herbivorous livestock like sheep (mutton, chevron) and cattle (beef) are not natural hosts for Trichinella because they do not consume meat, and thus do not play a role in transmitting trichinellosis under normal circumstances.
Step 3: Final Answer:
The primary vehicle of transmission to humans is pork, corresponding to option (A).
Trichinellosis (or trichinosis) is a major parasitic zoonosis caused by nematodes of the genus Trichinella, most commonly Trichinella spiralis.
It is transmitted to humans through the ingestion of raw or undercooked meat containing infective, encysted larvae.
Step 2: Detailed Explanation:
Let us look at the primary host and transmission pathways of Trichinella:
- Trichinella spiralis has a broad host range among carnivores and omnivores.
- Domestic pigs are the primary reservoir hosts in the domestic cycle of the parasite.
- Humans acquire the infection almost exclusively by consuming raw, inadequately cooked, or poorly cured pork products containing viable, encysted larvae in the muscle tissue.
- Herbivorous livestock like sheep (mutton, chevron) and cattle (beef) are not natural hosts for Trichinella because they do not consume meat, and thus do not play a role in transmitting trichinellosis under normal circumstances.
Step 3: Final Answer:
The primary vehicle of transmission to humans is pork, corresponding to option (A).
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