Plague is transmitted by all EXCEPT?: (A) X. Cheopsis, (B) X. Astia, (C) Pulexirritans, (D) Culex
Answer is D. Ans. (d) CulexRef : K. Park 23rd ed. / 292-93* The commonest and most effective vector of plague is rat flea x.cheopsis.* Others are X.Astia, X.Brasiliensis and Pulexirritans.* Culex is a vector of lymphatic filariasis and Japanese encephalitis (culex tritaeniorhynchus).