2009
DOI: 10.4102/ojvr.v76i2.40
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Seroprevalence of <i>Cryptosporidium parvum</i> infection of dairy cows in three northern provinces of Thailand determined by enzyme-linked immunosorbent assay using recombinant antigen CpP23

Abstract: 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 immunosorbent assay… Show more

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Cited by 7 publications
(5 citation statements)
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“…This detection system is essential to identify both recent and past infections, so it is a more accurate reflection of the endemicity status of C. parvum in the study areas. The seroprevalence in cattle in Thailand was recorded as 4.4% in one study, which was the only other report for seroprevalence of anti-CpP23 antibodies in cattle (Inpankaew et al, 2009). The higher prevalence in the current study may be related to the difference in time period, location and also the environment at the sample sites.…”
Section: Discussionmentioning
confidence: 88%
See 1 more Smart Citation
“…This detection system is essential to identify both recent and past infections, so it is a more accurate reflection of the endemicity status of C. parvum in the study areas. The seroprevalence in cattle in Thailand was recorded as 4.4% in one study, which was the only other report for seroprevalence of anti-CpP23 antibodies in cattle (Inpankaew et al, 2009). The higher prevalence in the current study may be related to the difference in time period, location and also the environment at the sample sites.…”
Section: Discussionmentioning
confidence: 88%
“…The higher prevalence in the current study may be related to the difference in time period, location and also the environment at the sample sites. Moreover, Inpankaew et al (2009), sampled cattle in northern Thailand, including Chiang Mai, Chiang Rai and Lumpang provinces that are well known for the highest dairy cow populations in Thai regions, and subsequently these animals are expected to receive a high standard of veterinary care. More field studies are required to validate CpP23-based ELISA as a universal tool for determining seroprevalence of C. parvum in cattle and other animals, including humans.…”
Section: Discussionmentioning
confidence: 99%
“…While we did not detect either Cryptosporidium or Giardia in faecal samples of dairy cattle at our study site, other Thai studies have (Inpankaew et al, 2010;Jittapalapong et al, 2006Jittapalapong et al, , 2011Nuchjangreed et al, 2008). In Northern Thailand, the seroprevalence of Cryptosporidium parvum infection of 642 dairy cows were 3.3%, 5.1% and 3.0% in the provinces of Chiang Mai, Chiang Rai and Lampang, respectively (Inpankaew et al, 2009).…”
Section: Livestock Managementmentioning
confidence: 81%
“…The purified proteins were much closer to natural proteins in terms of molecular weight. In previous studies, the purified rP23 had different molecular weights, such as 43 kDa [ 13 ] , 46 kDa [ 17 ] , 23 kDa [ 18 ] , 27 kDa [ 1 ] , 37 kDa [ 11 ] , and 40 kDa [ 19 ] , which may be due to the cloning system and expression methods. The type of Tags also affected the final molecular weight of the resulting protein.…”
Section: Discussionmentioning
confidence: 99%
“…Cryptosporidium parvum is a coccidian parasite recognized as a major cause of human diarrheal disease, namely cryptosporidiosis. This parasite can infect intestinal epithelial cells and is transmitted via orofecal route [ 1 ] .…”
Section: Introductionmentioning
confidence: 99%