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Cryptosporidiosis is a worldwide zoonosis caused by  Cryptosporidium  spp., sometimes leading to severe diarrhea in humans and animals. In the present study, 311 parrots, belonging to four species, namely, Budgerigars ( Melopsittacus undulatus ), Lovebirds ( Agapornis  sp.), Alexandrine parakeets ( Psittacula eupatria ), and Cockatiel ( Nymphicus hollandicus ), from Beijing and Weifang cities, were examined for  Cryptosporidium  spp. infection. Blood samples of each bird were examined using enzyme linked immunosorbent assay (ELISA) and fecal samples were examined by Sheather's sugar flotation technique. Prevalence of  Cryptosporidium  infection were 3.22% (10/311) and 0.64% (2/311) by ELISA and Sheather's sugar flotation technique, respectively. Seroprevalence of  Cryptosporidium  infection in different breeds varied from 0 to 15.39%. Sequencing analysis showed that both positive samples from fecal samples belonged to  Cryptosporidium  avian genotype V. This is the first report of  Cryptosporidium  avian genotype V in Budgerigars. The results of the present study provided foundation-data for prevention and control of cryptosporidiosis in pet birds in China.

Prevalence and Genotyping ofCryptosporidiumInfection in Pet Parrots in North China