Moraxella nasicaprae sp. nov., Isolated from a Goat with Respiratory Disease.

A novel Gram-stain-negative, aerobic, irregular coccus designated as ZY201224, was isolated from the nasal cavity of a goat with respiratory disease in a goat farm, located at Jianshui, Yunnan Province, PR China and its taxonomic position was clarified using a polyphasic approach. The strain grew optimally at 37 °C, at pH 8.0 and in the presence of 1% NaCl.

sp. nov., isolated from a sheep with respiratory disease.

A novel Gram-stain-negative, aerobic, coccus-shaped bacteria, designated ZY201115, was isolated from the nasal cavity of a sheep with respiratory disease in Yunnan Province, south-west China, and its taxonomic affiliation was studied by applying a polyphasic approach. The strain grew at 18-41 °C (optimum, 37 °C), at pH 6.0-9.

Epidemiological investigation and phylogenetic analysis of Classical Swine Fever virus in Yunnan province from 2015 to 2021.

Background: Classical swine fever virus (CSFV), the causative agent of classical swine fever (CFS), is a highly contagious disease that poses a serious threat to Chinese pig populations.

Objectives: Many provinces of China, such as Shandong, Henan, Hebei, Heilongjiang, and Liaoning provinces, have reported epidemics of CSFV, while the references to the epidemic of CSFV in Yunnan province are rare. This study examined the epidemic characteristics of the CSFV in Yunnan province.

Epidemiological Investigation and Genetic Analysis of Pseudorabies Virus in Yunnan Province of China from 2017 to 2021.

In recent years, the prevalence of pseudorabies virus (PRV) has caused huge economic losses to the Chinese pig industry. Meanwhile, PRV infection in humans also sounded the alarm about its cross-species transmission from pigs to humans. To study the regional PRV epidemic, serological and epidemiological investigations of PRV in pig populations from Yunnan Province during 2017-2021 were performed.

Emergence of a Novel Recombinant Pseudorabies Virus Derived From the Field Virus and Its Attenuated Vaccine in China.

The occurrence of pseudorabies (PR) caused by the PR virus (PRV) causes huge economic losses to the pig industry in China. Moreover, the potential threat of PRV to humans' health has received wide attention recently. The prevalence of two PRV genotypes and the application of their corresponding live attenuated vaccines increase the recombination possibility.

Homologous recombination technology generated recombinant pseudorabies virus expressing EGFP facilitates to evaluate its susceptibility to different cells and screen antiviral compounds.

Pseudorabies virus (PRV) is considered as an emerging zoonotic pathogen since its isolation from a human case. Meanwhile, the disease caused by PRV infection has led huge economic losses to Chinese pig industry since 2011. In this study, we constructed a recombinant PRV stably expressing the enhanced green fluorescent protein (EGFP) by homologous recombination technology for evaluating its susceptibility to different human cell lines and screening antiviral compounds.

sp. nov., isolated from cow faeces.

A Gram-stain-negative, non-spore-forming, yellow-pigmented, aerobic, pleomorphic rod-shaped bacterium, designated ZY171143, was isolated from faeces of a cow with diarrhoea in Wenshan, Yunnan Province, south-west China and its taxonomic position was studied. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain ZY171143 belonged to the family and was most closely related to the only species of the genus , CCTCC AB 2016016 with a sequence similarity of 97.8 %.

Mannheimia bovis sp. nov., Isolated from a Dead Cow with Hemorrhagic Pneumonia.

Strain ZY190616 was isolated from lung of a dead cow with hemorrhagic pneumonia in Yunnan Province, China. The strain was Gram-stain-negative, facultatively anaerobic bacterium. Phylogenetic analysis based on 16S rRNA gene sequence indicated that the strain was closely related to species of the genus Mannheimia and formed an independent clade with M.

Mannheimia ovis sp. nov., Isolated from Dead Sheep with Hemorrhagic Pneumonia.

Two Gram-stain-negative, facultatively anaerobic bacteria, designated ZY170218 and ZY180512, were isolated from lungs of dead sheep with hemorrhagic pneumonia in Yunnan Province, China and their taxonomic positions were studied by a polyphasic approach. The two isolates grew optimally at 37 °C, pH 9.0 and 1.

Suicoccus acidiformans gen. nov., sp. nov., isolated from a sick pig.

A Gram-stain-positive, non-spore-forming, catalase-positive and facultatively anaerobic coccus, designated ZY16052, was isolated from mesenteric lymph nodes of a sick piglet in Kunming, Yunnan Province, PR China and its taxonomic position was studied by following a polyphasic approach. Optimal growth was observed at 37 °C, pH 8.0 and 2 % NaCl (w/v) on Columbia agar.

Emergence and pathogenicity of highly pathogenic Porcine reproductive and respiratory syndrome virus in Vientiane, Lao People's Democratic Republic.

Highly pathogenic porcine reproductive and respiratory syndrome (HP-PRRS) characterized by high fever, high morbidity, and high mortality in pigs of all ages emerged in China in 2006 and spread rapidly throughout Southeast Asia. In July 2010, a highly contagious swine disease with clinical signs similar to those of HP-PRRS was observed in the Lao People's Democratic Republic (Lao PDR). A field investigation covering 8 pig farms and 1 slaughterhouse in 7 different districts in the capital city of Vientiane was conducted to identify the disease.