cryptosporidium parvum protozoa in human stool smear

cryptosporidium parvum protozoa human stool smear cryptosporidiosis crypto cyst oocyst parasite positive acid fast acidfast stain sample specimen fecal feces lab laboratory medical exam microorganism disease diagnosis research science patient analyzing test microbiology infection infectious health care hiv aids diarrhea chronic epidemic immunodeficient microscope nitazoxanide treatment red sphere shape stage analyze