| genetic characterizations of cryptosporidium spp. and giardia duodenalis in humans in henan, china. | cryptosporidium and giardia infections are common causes of diarrhea worldwide. to better understand the transmission of human cryptosporidiosis and giardiasis in henan, china, 10 cryptosporidium-positive specimens and 18 giardia-positive specimens were characterized at the species/genotype and subtype levels. cryptosporidium specimens were analyzed by dna sequencing of the small subunit rrna and 60kda glycoprotein genes. among those genotyped, nine belonged to c. hominis and one c. felis, with ... | 2011 | 20599984 |