In vivo pharmacokinetic and pharmacodynamic study and cutoff of florfenicol against Riemerella anatipestifer in ducks.

Riemerella anatipestifer causes serious infections, characterized by septicemia and serositis, in ducks and geese. R. anatipestifer is mainly controlled through antimicrobial chemotherapy.

Comparative genomics analysis reveals sequence characteristics potentially related to host preference in Cryptosporidium xiaoi.

Cryptosporidium spp. are important diarrhea-associated pathogens in humans and livestock. Among the known species, Cryptosporidium xiaoi, which causes cryptosporidiosis in sheep and goats, was previously recognized as a genotype of the bovine-specific Cryptosporidium bovis based on their high sequence identity in the ssrRNA gene.

High zoonotic potential of Cryptosporidium spp., Giardia duodenalis, and Enterocytozoon bieneusi in wild nonhuman primates from Yunnan Province, China.

Background: Cryptosporidium spp., Giardia duodenalis and Enterocytozoon bieneusi are important zoonotic protists in humans and animals around the world, including nonhuman primates (NHPs). However, the prevalence, genetic identity and zoonotic potential of these pathogens in wild NHPs remain largely unclear.

Species and Subtypes in Farmed Bamboo Rats.

Bamboo rats () are widely farmed in Guangdong, China, but the distribution and public health potential of spp. in them are unclear. In this study, 724 fecal specimens were collected from bamboo rats in Guangdong Province and analyzed for spp.

Common occurrence of divergent Cryptosporidium species and Cryptosporidium parvum subtypes in farmed bamboo rats (Rhizomys sinensis).

Background: Bamboo rats are widely farmed in southern China for meat, but their potential in transmitting pathogens to humans and other farm animals remains unclear.

Methods: To understand the transmission of Cryptosporidium spp. in these animals, 709 fecal samples were collected in this study from Chinese bamboo rats (Rhizomys sinensis) on nine farms in Jiangxi, Guangxi and Hainan provinces, China.

Zoonotic potential of Enterocytozoon bieneusi and Giardia duodenalis in horses and donkeys in northern China.

Limited data are available on infection rates and genetic identity of Enterocytozoon bieneusi and Giardia duodenalis in horses and donkeys. In this study, 865 fecal specimens were collected from donkeys (n = 540) and horses (n = 325) in three provinces and autonomous regions in northern China during 2015-2019. Enterocytozoon bieneusi was detected and genotyped by PCR and sequence analyses of the ribosomal internal transcribed spacer (ITS) and G.

Divergent Copies of a -Specific Subtelomeric Gene.

Subtype families of differ in host range, with IIa and IId being found in a broad range of animals, IIc in humans, and IIo and IIp in some rodents. Previous studies indicated that the subtelomeric gene in is lost in many species, and could potentially contribute to the broad host range of the former. In this study, we identified the presence of a second copy of the gene in some subtype families with a broad host range, and showed sequence differences among them.

Different distribution of Cryptosporidium species between horses and donkeys.

Few studies have been conducted on the distribution of Cryptosporidium species and subtypes in equine animals. In this study, 878 stool specimens were collected during 2015-2019 from 551 donkeys and 327 horses in Shandong, Xinjiang, and Inner Mongolia, China and screened for Cryptosporidium spp. by PCR analysis of the small subunit rRNA gene.