Question:medium
About Campylobacter jejuni, which of the following is FALSE?
About Campylobacter jejuni, which of the following is FALSE?
Show Hint
It is a zoonosis from poultry, so the human-only reservoir claim cannot be true.
Updated On: Jun 24, 2026
- It is the most common pathogenic strain causing campylobacteriosis in India
- Poultry is the main source of infection
- Humans are the only reservoir
- It is associated with Guillain-Barre syndrome
Show Solution
The Correct Option is C
Solution and Explanation
This is a find-the-false-statement item, so verify each claim and the one that fails is the answer.
$Campylobacter$ $jejuni$ is a curved microaerophilic gram-negative rod and the commonest cause of bacterial diarrhoea. The claim that it is the leading pathogenic species causing campylobacteriosis is therefore accurate. The claim that poultry is the principal source also holds, because infection is typically traced to contaminated or undercooked chicken, making it a classic food-borne zoonosis. The link with Guillain-Barre syndrome is likewise correct, since prior C. jejuni gastroenteritis can trigger this post-infectious neuropathy through molecular mimicry of nerve gangliosides.
The remaining claim says humans are the only reservoir. This contradicts the very nature of the organism as a zoonosis with broad animal reservoirs including poultry, cattle, and other livestock. Humans are mainly accidental hosts, not the sole reservoir, so this statement is the false one.
Therefore the false statement is that humans are the only reservoir.
\[\boxed{\text{Humans are the only reservoir}}\]
$Campylobacter$ $jejuni$ is a curved microaerophilic gram-negative rod and the commonest cause of bacterial diarrhoea. The claim that it is the leading pathogenic species causing campylobacteriosis is therefore accurate. The claim that poultry is the principal source also holds, because infection is typically traced to contaminated or undercooked chicken, making it a classic food-borne zoonosis. The link with Guillain-Barre syndrome is likewise correct, since prior C. jejuni gastroenteritis can trigger this post-infectious neuropathy through molecular mimicry of nerve gangliosides.
The remaining claim says humans are the only reservoir. This contradicts the very nature of the organism as a zoonosis with broad animal reservoirs including poultry, cattle, and other livestock. Humans are mainly accidental hosts, not the sole reservoir, so this statement is the false one.
Therefore the false statement is that humans are the only reservoir.
\[\boxed{\text{Humans are the only reservoir}}\]
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