The overall prevalence is not accurately estimated especially in the whole population (because<unk>  is usually investigated in immunocompromised patients with correlating gastrointestinal tract symptoms to<unk> . The disease is present all over the world. In HIV patients with diarrhea, the prevalence of<unk>  was 39% being the most common isolated organism.
Microsporidiosis epidemiology and demographics
Isosporiasis epidemiology and demographics
Leishmaniasis epidemiology and demographics
Ancylostomiasis epidemiology and demographics
Cryptosporidiosis epidemiology and demographics
Whipworm infection epidemiology and demographics
Psittacosis epidemiology and demographics
Byssinosis epidemiology and demographics