canine parainfluenza virus (cpiv) is one of the most common organisms isolated from dogs with signs of infectious tracheobronchitis (itb). distribution is apparently worldwide. although cpiv may cause mild clinical infections, clinical diseases is expected to be more severe in dogs co-infected with bordetella bronchiseptica than with any these agents alone. the present study was conducted to de...

megaesophagus (esophageal dilatation) is a neuromuscular disease. in this disorder, the esophagus is abnormally stretched and air is collected with food in it. two male dogs aged 4 and 6-year-old, german shepherd breeds and weighing 18.4 and 23.2 kg were presented to the veterinary hospital of shahid chamran university with complaints of regurgitation, dehydration, anorexia, depression, dysphag...

Porcine circovirus 3 (PCV3) is a recently emerged discovered in 2016 that has drawn the attention of swine industry worldwide. In this study, we evaluated genetic diversity PCV3 strains on pig farms. A total 261 samples from sows, weaning pigs, growing and stillborn/mummified fetuses were analyzed by quantitative real-time PCR. The results revealed at least two main lineages are circulating Bra...

The study objectives were to compare the duration of immunity of commercially available, one and two dose, killed porcine circovirus type 2 (PCV2) vaccines. Sixty, 3.5-week-old pigs were randomly divided into 6 treatment groups: one dose vaccines (FDAH-1, BIVI-1), two dose vaccines (Intervet-2, FDAH-2), and nonvaccinated negative and positive controls. Tissue homogenate challenge was conducted ...

The complete genome of porcine circovirus type 2 (PCV2) strain YiY-3-2-H5 contains a cytidine insertion at position 962 in open reading frame 1. This insertion causes a reading frameshift of the rep gene, and thereafter a premature stop codon is present at the 3' terminal end of this gene.

Shandong is a porcine circovirus 2b (PCV2b) strain that was isolated and purified from tissue samples from pigs with postweaning multisystemic wasting syndrome (PMWS) in the Shandong Province of China. Here, we report the complete genome sequence of strain Shandong, which may aid in understanding the molecular characteristics of this strain.

Porcine circovirus-2 (PCV-2) infection is currently considered an important disease of swine. The pathogenic agent was first described in Brazil in 2000. This study detected the PCV-2 DNA in four Brazilian pig tissues collected between 1978 and 1979. This observation is the oldest description of this virus in Brazil.