The pathogenic organism responsible for causation of Donovaniasis is-
Granuloma Inguinale (Donovanosis) Granuloma inguinale is a genital ulcerative disease caused by the intracellular gram-negative bacterium Klebsiella granulomatis (formerly known as Calymmatobacterium granulomatis) Ref Harrison20th edition pg 1078
Chlamydia trachomatis
Calymmatobacterium granulomatis
Haemophilus ducreyi
Herpes simplex virus
Infection