Abstract
Enterocytozoon bieneusi is a widespread intracellular fungus that can infect both humans and animals, making it a significant zoonotic threat. In the current study, a total of 208 fecal samples were assayed to investigate the prevalence of E. bieneusi in pigs reared in Zhejiang Province, China. Employing polymerase chain reaction (PCR) amplification techniques specifically designed to target the internal transcribed spacer (ITS) region of the small subunit ribosomal RNA (rRNA) gene, the results revealed that 78 samples (37.5 %) tested positive for the presence of E. bieneusi. A total of 19 different genotypes of E. bieneusi were detected. Nine of these genotypes were already known: EbpC (n = 36), KIN-1 (n = 10), PigEbITS7 (n = 8), EbpA (n = 6), Henan III (n = 3), PigEbITS5 (n = 2), Henan-IV (n = 1), EbpD (n = 1), and TypeIV (n = 1), and 10 were novel: ZJP-I to ZJP-X (one each). The present investigation revealed that all the nine known genotypes identified in pigs here, have also been previously discovered in humans. Additionally, the novel genotypes of E. bieneusi discovered here were all classified as belonging to Group 1. These findings suggest the potential for cross-species transmission between humans and pigs.
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