| molecular characterization of infectious laryngotracheitis virus in naturally infected egg layer chickens in a multi-age flock in brazil. | the virus responsible for an outbreak of infectious laryngotracheitis (ilt) in a multi-age flock of egg layer chickens under quarantine in brazil was characterized. layer chickens from this area with circulating gallid herpesvirus 1 (gahv 1) were evaluated using histopathology and molecular characterization techniques based on sequences of infected-cell polypeptide 4 (icp4) and thymidine kinase (tk) genes. the infected chickens that were analyzed were pcr-positive for gahv-1 in the trachea and n ... | 2015 | 25385176 |