P. carini causes infection primarily in?
Pneumocystis jirovecii causes infection Primarily in Rats. Pneumocystis jirovecii (previously P. carinii) is the causative organism of Pneumocystis pneumonia paicularly among immunocompromised hosts. P. jiroveci causes PCP in human with HIV if, their CD4+ cells count below 200/uL.
Rats
Guinea pig
Rabbits
Humans
Mycology