IBV variants belonging to the GI-23 lineage have circulated since 1998 in the Middle East
and have spread to several countries over time. In Brazil, the first report of GI-23 occurred in …

Infectious bronchitis virus (IBV) is a pathogen affecting poultry flocks worldwide. GI-23 is an
IBV lineage with a rapid spread into different continents of the world, and it was reported for …

Avian infectious bronchitis virus (IBV) is the etiological agent of a highly contagious disease
in the poultry industry. The spike protein (S1 subunit) is responsible for the molecular …

Background: Infectious bronchitis virus (IBV) is the etiological agent of an acute and highly
contagious disease. Infectious bronchitis (IB) affects chicken of all ages and poses major …

Infectious bronchitis viruses (IBVs) of GI-13 (793/B) and GI-19 (QX/LX4) lineages have been
frequently detected in China in recent years. Naturally recombinant IBVs originating from the …

Avian infectious bronchitis is one of the most important respiratory diseases affecting poultry
production worldwide. The etiological agent of this disease is the avian infectious bronchitis …

As part of an epidemiological study of infectious bronchitis virus (IBV) in Brazil, 252 samples
from IBV-suspect flocks were tested and the IBV-positive samples were analysed by …

The antigenic and molecular characteristics of BR-I infectious bronchitis viruses (IBVs)
isolated from Brazil are reported. IBVs isolated from commercial flocks with different clinical …

Simple Summary The high adaptation and recombination abilities of infectious bronchitis
virus (IB) have been proven. This study aims to verify the genetic and antigenic variation of …

Avian infectious bronchitis coronavirus (IBV) is a major poultry pathogen. A characteristic
feature of IBV is the occurrence of many different strains belonging to different serotypes …