Why are nearly all aids patients at risk of developing pneumocystis pneumonia?
a) pneumocystis jiroveci is commonly found in a wide variety of soils.
b) pneumocystis jiroveci is becoming a wide-spread contaminant in health care environments.
c) pneumocystis jiroveci is zoonotic in a wide range of vertebrates and exposure is unavoidable.
d) the pathogen is easily transmitted from infected persons to others.
e) pneumocystis jiroveci is a common member of the respiratory microbiome in humans and opportunistic pathogen.