Molecular Characterization of Spp., , and in Dairy Goat Kids with Diarrhea in Partial Regions of Shaanxi Province, China
Overview
Affiliations
spp., , and are important diarrheal pathogens threatening the health of humans and various animals. Goats, especially pre-weaned goat kids, that carry these pathogens are important reservoirs related to human infection. In the present study, PCR-based sequencing techniques were applied to characterize spp., , and in 202 fecal samples of diarrheal kids for Guanzhong dairy goats from five locations in Shaanxi Province. The positive rates of spp., , and were 37.6% (76/202), 16.3% (33/202), 55.4% (112/202) and 78.7% (159/202) in these goat kids, respectively. Co-infection of two to four pathogens was found in 114 of 202 fecal samples. Significant differences ( < 0.001) in the positive rates of spp. and were found among locations and age groups. Furthermore, two species ( and ), two assemblages (E and A), nine genotypes (CHG3, CHG1, BEB6, CHG5, CHG2, SX1, CHG28, COS-II and CD6) and two pathotypes (EPEC and EHEC) were identified. As for , two (IIdA19G1 and IIdA19G2) and two (XXIIIa and XXIIIg) subtypes were recognized in samples positive for and , respectively. A phylogenetic analysis based on the ITS locus of indicated that all nine genotypes of identified in this study belonged to the group 2. Four virulence factors (, , and ) of EPEC and EHEC were found in strains. Collectively, this study explored the colonization frequency of spp., , and in diarrheal kids of Guanzhong dairy goats in Shaanxi Province and expanded our understanding of the genetic composition and zoonotic potential of these pathogens in goats.
Xin X, Sun L, Liu W, Zhang J, Ma S, Fu X Front Vet Sci. 2024; 11:1415813.
PMID: 39628867 PMC: 11613171. DOI: 10.3389/fvets.2024.1415813.
Xiao H, Su N, Zhang Z, Dai L, Luo J, Zhu X Animals (Basel). 2024; 14(12).
PMID: 38929427 PMC: 11201008. DOI: 10.3390/ani14121808.
Gao J, Zhou L, Zhang A, Hou M, Liu X, Zhang X Animals (Basel). 2024; 14(11).
PMID: 38891682 PMC: 11171270. DOI: 10.3390/ani14111635.