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Chancroid is caused by __________

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in Biology – Class 12 by (271k points)
Chancroid is caused by __________

(a) Trichomonas

(b) Treponema

(c) Haemophilus

(d) Neisseria

This question was addressed to me in quiz.

Enquiry is from Venereal Diseases in Humans-2 in section Human Health and Disease of Biology – Class 12

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Correct choice is (c) Haemophilus

Explanation: Chancroid is caused by Haemophilus ducrei. The incubation period of this bacteria is 3-5 days. The initial lesion at the site of inoculation breaks down to form a painful, soft ulcer with a necrotic base. With lymph node involvement, fever and chills may occur.

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