| molecular characterization of cryptosporidium in children in oyo state, nigeria: implications for infection sources. | a study was conducted to detect and identify cryptosporidium spp. in 43 children from oyo state, nigeria. using nested polymerase chain reaction, 11.6% of the children were identified as positive for cryptosporidium spp. restriction fragment length polymorphism analysis and dna sequencing of the pcr products showed the presence of three subtype families of cryptosporidium hominis (two isolates of ia and one isolate of ib) and cryptosporidium parvum (two isolates of iic), all anthroponotic in nat ... | 2011 | 21744017 |