seroprevalence of cryptosporidium parvum infection of dairy cows in three northern provinces of thailand determined by enzyme-linked immunosorbent assay using recombinant antigen cpp23.cryptosporidium parvum is the most frequent parasitic agent that causes diarrhoea in aids patients in thailand. cryptosporidiosis outbreaks in humans may be attributed to contamination of their drinking water from infected dairy pastures. a 23-kda glycoprotein of c. parvum (cpp23) is a sporozoite surface protein that is geographically conserved among c. parvum isolates. this glycoprotein is a potentially useful candidate antigen for the diagnosis of cryptosporidiosis by enzyme-linked immunosorbe ...200920698436
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