Revision of some species of the genus Cryptosporidium (Tyzzer, 1907) (Eucoccidiorida, cryptosporidiidae) in cattle in Iraq
1 Iraq Natural History Research Center and Museum, University of Baghdad, Baghdad, Iraq.
2 College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq.
Review Article
GSC Biological and Pharmaceutical Sciences, 2021, 14(01), 116-120.
Article DOI: 10.30574/gscbps.2021.14.1.0003
Publication history:
Received on 02 January 2021; revised on 10 January 2021; accepted on 12 January 2021
Abstract:
Cryptosporidium is a protozoan parasite of medical and veterinary significance that causes gastroenteritis in a number of vertebrate hosts. Several studies have recorded different degrees of pathogenicity and virulence among Cryptosporidium species and isolates of the same species as well as evidence of variation in host susceptibility to infection. Nevertheless, important progress has been made in determining Cryptosporidium's putative virulence factors. Since the publication of C parvum and C. Hominis this development has been accelerated genomes, identified by a range of immunological and molecular techniques with the characterization of over 25 putative virulence factors, which are proposed to be involved in aspects of host-pathogen interactions from adhesion and locomotion to invasion and proliferation. There has also been improvement in the contribution of host variables correlated with differences in both the severity and risk of infection. In view of our current understanding of microbial virulence, we present a summary of the current state of information on Cryptosporidium infectivity, pathogenesis, and transmissibility here.
Keywords:
Cryptosporidium; Cattle; Breeds; Virulence; Tyzzer
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