Which organism cannot be cultured ?: (A) Klebsiella rhinoscleromatis, (B) Klebsiella ozaenae, (C) Klebsiella granulomatis, (D) Pneumocystis jiroveci
Answer is D. Ans. is 'd' i.e., Pneumocytstis jiroveci "The life cycle of pneumocystis probably involves sexual and asexual reproduction, although definitive proof awaits the development of a reliable culture system". - Harrison "Rhinosporidium seeberi has not been cultivated in media". - Ananthnarayan.