Characteristic of primary chancre:(1988): (A) Painless punched out ulcer, (B) Painless ulcer with over hanging edges, (C) Painless ulcer with irregular raised edges, (D) Painful punched out ulcer
Answer is A. Ans: a (Painless punched out ulcer)Ref: Ananthanarayan Micro, 7th ed, p. 379 & 6th ed, p. 350, Harrison, 16thed, p. 979 & 15th ed, p. 1048