<prompt> A 42yr old female with HIV is frequently suffering from diarrhoea despite treatment with HAA. Which of the following organisms can cause diarrhoea in HIV patients?CryptosporidiumMicrosporidiaIsosporaAll the above  <response>: All the organisms can produce diarrhoea in HIV patients due to impaired t cell-mediated immunity Ref: D.R. Arora. Medical parasitology 4th ed pg. 239 