<prompt> Drug of choice for brucellosis:ChloramphenicolErythromycinDoxycyclineCefuroxime  <response>: Ref: Sharma Sharma 3rd ed. P 760 H Doxycycline is from the tetracycline class of drug. Tetracyclins are first line DOC in following conditions like Rocky mountain spotted fever Typhus fever Psittacosis Granuloma inguinale Non-specific urethritis ureaplasma urealyticum Lyme disease Brucellosis Brucella abortus Plague Pasturella abscess First line combination therapy for brucellosis is: Doxycycline and Rifampicin 