Publications by authors named "Jianzhong Wei"

Duck Tembusu virus (DTMUV) is an emergent infectious pathogen that has caused severe disease in ducks and huge economic losses to the poultry industry in China since 2009. Previously, we showed that DTMUV inhibits IFN-β induction early in infection; however, the mechanisms of the inhibition of innate immune responses remain poorly understood. In this study, we screened DTMUV-encoded structural and nonstructural proteins using reporter assays and found that DTMUV NS1 markedly suppressed virus-triggered IFN-β expression by inhibiting retinoic acid-inducible gene I-like receptor signaling.

View Article and Find Full Text PDF

During 2012 and 2013, several border disease virus (BDV) strains were identified from Chinese goat and sheep herds. At the same time, pigs from the same areas were found to be seropositive to BDV by ELISA, without showing clinical signs (unpublished data). To examine the susceptibility of pigs to the Chinese BDV strains, BDV isolate JSLS12-01, isolated from naturally infected sheep, was used to infect pigs.

View Article and Find Full Text PDF

Parainfluenza virus type 3 (PIV3) is one of the most important viral respiratory pathogens for humans and for many animals, but goat infection has been rarely reported. Starting in Aug 2013, goats in the Jiangsu and Anhui provinces of eastern China suffered severe respiratory diseases. In order to identify the causative agent, numerous related pathogens were tested with RT-PCR or PCR.

View Article and Find Full Text PDF

A Neisseria strain, Neisseria sp. AH-N10, was isolated from liver of a Chinese Peking duck and characterized using a number of phenotypic and genotypic approaches. Based on scanning electron microscopy examination, the isolated strain has the typical structure of Neisseria species.

View Article and Find Full Text PDF

Duck Tembusu virus (DTMUV) is a single-stranded positive-sense RNA virus that causes disease to emerge in duck flocks and results in huge economic losses to the duck industry. However, no vaccines and control measures are available in China to date. Development of reliable and fast detection methods is necessary to prevent and control this disease.

View Article and Find Full Text PDF

Border disease virus (BDV) is a recognized virus in the genus Pestivirus and causes border disease (BD) in sheep and goats. Here, a novel BDV strain, JSLS12-01, was identified from sheep in Jiangsu Province, China. The complete coding sequence (CDS) was finished, which provides a better understanding of the molecular evolution of BDV isolates.

View Article and Find Full Text PDF

Duck Tembusu virus (DTMUV) is a newly emerging infectious agent in China. Since 2010, this presumably arthropod-borne virus has caused severe disease in duck flocks. A cell-adapted DTMUV, designated AH10, has been developed.

View Article and Find Full Text PDF

The causative agent of Glasser's disease in swine is Haemophilus parasuis. Commercial bacterins are widely used for protection of the swine population. However, cross protection is limited because H.

View Article and Find Full Text PDF

The porcine enteroviruses (PEVs) belong to the family Picornaviridae. We report a complete genome sequence of a novel PEV strain that is widely prevalent in pigs at least in central and eastern China. The complete genome consists of 7,390 nucleotides, excluding the 3' poly(A) tail, and has an open reading frame that maps between nucleotide positions 812 and 7318 and encodes a 2,168-amino-acid polyprotein.

View Article and Find Full Text PDF

Hepatitis E virus (HEV) is a zoonotic pathogen of which several species of animal were reported as reservoirs. Swine stands out as the major reservoir for HEV infection in humans, as suggested by the close genetic relationship of swine and human virus. Since 2000, Genotype 4 HEV has become the dominant cause of hepatitis E disease in China.

View Article and Find Full Text PDF