P. Carni causes infection of primarily ?: (A) Rats, (B) Mice, (C) Humans, (D) Rabbits
Answer is A. Ans. is 'a' i.e., Rats . Although the organisms within the pneumocystis genus are morphologically very similar, they are genetically diverse and host specific --> P jirovecii infects humans, where as Pcarinii infects rats.