{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,13]],"date-time":"2026-01-13T06:25:00Z","timestamp":1768285500744,"version":"3.49.0"},"reference-count":54,"publisher":"Cambridge University Press (CUP)","issue":"9","license":[{"start":{"date-parts":[[2019,5,14]],"date-time":"2019-05-14T00:00:00Z","timestamp":1557792000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2019,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p><jats:italic>Giardia duodenalis<\/jats:italic> is a common intestinal parasite in humans and other mammals, and it causes major public and veterinary health problems worldwide. China is a major pig-raising country, and studies on <jats:italic>Giardia<\/jats:italic> in pigs have important public health significance. The present study was conducted to investigate the prevalence of <jats:italic>Giardia<\/jats:italic> and assess its genetic characterization. A total of 93 samples were collected from two farms in Shanghai. The presence of <jats:italic>Giardia<\/jats:italic> was determined using PCR and sequence analysis of glutamate dehydrogenase, beta-giardin and triose phosphate isomerase genes. The average prevalence of <jats:italic>G. duodenalis<\/jats:italic> infection was 26.88% (25\/93) in the pigs, with 28.13% (18\/64) in farm 1 <jats:italic>vs<\/jats:italic> 24.14% (7\/29) in farm 2. All the PCR-positive products were successfully sequenced, and assemblage E was more prevalent. Zoonotic assemblages A and B and canine-specific assemblage C were identified in farm 1, whereas, only assemblage E was detected in farm 2. Interestingly, two pig isolates showed 100% homology with human-derived isolates from Australia and China at the <jats:italic>bg<\/jats:italic> and <jats:italic>tpi<\/jats:italic> loci respectively. Pigs infected with <jats:italic>Giardia<\/jats:italic> infect humans by polluting the environment; whether pigs are a potential environmental source of the human pathogen in China requires more epidemiological data.<\/jats:p>","DOI":"10.1017\/s0031182019000349","type":"journal-article","created":{"date-parts":[[2019,5,14]],"date-time":"2019-05-14T07:42:22Z","timestamp":1557819742000},"page":"1199-1205","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":15,"title":["Prevalence and multilocus genotyping of potentially zoonotic <i>Giardia duodenalis<\/i> in pigs in Shanghai, 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