Infectious bronchitis (IB) is a highly contagious disease involving mostly upper respiratory tract in chickens, leading to significant economic losses in the poultry industry worldwide. One of the major concerns regarding to IB is the emergence of new types of infectious bronchitis viruses (IBVs). The purpose of this study was to identify the IBVs isolated from Iranian broiler chickens with res...

nucleocapsid (n) protein of infectious bronchitis virus (ibv), one of the viral structural proteins, inducesstrong antibody response in natural infection. in this study, a simple, recombinant n protein-based dot-blottest was developed to serologically examine chicken serum samples for the presence of ibv antibody.initially, 72 serum samples were tested for the presence of ibv antibody using a c...

Cleavage of influenza virus hemagglutinin (HA) by host proteases is essential for infectivity. HA most A and B (IAV/IBV) viruses cleaved at a monobasic motif trypsin-like proteases. Previous studies have reported that transmembrane serine protease 2 (TMPRSS2) activation H7N9 H1N1pdm IAV in mice but H3N2 IBV independent TMPRSS2 carried out as-yet-undetermined protease(s). Here, to identify addit...

S1 gene sequences for infectious bronchitis virus (IBV) strains of the 4/91 genotype (commonly called 793B) isolated from field outbreaks in Japan were analyzed to ascertain the relationship to 4/91 vaccine strain. Three field isolates (JP/Wakayama/2003, JP/Iwate/2005 and JP/Saitama/2006) from flocks not immunized with a 4/91 type live IBV vaccine and one isolate (JP/Wakayama-2/2004) from a flo...

The nucleotide sequence of a genomic cDNA clone corresponding to the 5' terminal domain of mRNA D of the Beaudette strain of infectious bronchitis virus (IBV) has been determined. This region contains three open reading frames which predict polypeptides of molecular weights 6700 (6.7K), 7.4K and 12.4K. The predicted 12.4K polypeptide has a codon usage very similar to that predicted for the prod...

InfiniBand is a switched fabric interconnect. The InfiniBand specification does not define an API. However the OFED package, libibverbs, has become the default API on Linux and Solaris systems. Sparse documentation exists for the verbs API. The simplest InfiniBand program provided by OFED, ibv rc pingpong, is about 800 lines long. The semantics of using the verbs API for this program is not obv...

Animal coronaviruses, such as infectious bronchitis virus (IBV), and arteriviruses, such as porcine reproductive and respiratory syndrome virus (PRRSV), are able to manifest highly contagious infections in their specific native hosts, thereby arising in critical economic damage to animal industries. This review discusses recent progress in studies of virus-host interactions during animal and hu...

infectious bronchitis virus (ibv) belongs to the group of gamma coronaviruses along with other avian coronaviruses. the disease caused by ibv can appear similar to infectious laryngotracheitis, avian influenza, and velogenic newcastle disease, which are high priority diseases. the clinical signs can be accompanied by mortalities in broiler chickens and reduced eggshell and albumin quality in la...

The infectious bronchitis virus (IBV) was detected for the first time in Brazil by Hipólito in 1957 in chickens sold life in the municipal market of Belo Horizonte, MG, when commercial poultry production was just starting in that country. The Massachusetts (Mass) serotype was identified. However, the clinical disease was only observed in 1975, when poultry production was intensely growing. The ...