| an outbreak of infectious laryngotracheitis in commercial poultry flocks in ontario. | an outbreak of infectious laryngotracheitis was observed in ontario commercial poultry flocks from september 1974 to june 1975. fifty-five flocks, totalling over 848,770 birds were clinically affected by this disease in the southern region of the province. sixty-nine percent (38/55) of the exposed flocks were in wentworth country and the regional municipality of niagara. hemorrhagic tracheitis with histological evidence of intranuclear inclusion bodies in syncytia of tracheal epithelial cells we ... | 1977 | 193623 |
| analysis of infectious laryngotracheitis virus isolates from ontario and new brunswick by the polymerase chain reaction. | the polymerase chain reaction (pcr) was used to amplify dna of infectious laryngotracheitis virus (iltv) isolates obtained from field specimens. the examined 47 samples included 37 isolates representing 35 cases of infectious laryngotracheitis from ontario and 10 isolates originating from 10 field cases in new brunswick. the viruses were grown in either embryonated chicken eggs or cell culture, the dna extracted and amplified using primers designed from the sequence information of a 1.1 kb bamhi ... | 1998 | 9442943 |
| characterization of field isolates of infectious laryngotracheitis virus from ontario. | five cases of infectious laryngotracheitis (ilt) occurred in the fall of 2004 in the niagara peninsula, in southern ontario. at about the same time two more cases occurred in eastern ontario and one case in south-western ontario. we examined, at a molecular level, 10 ontario ilt virus field isolates from 2004 and early 2005 as well as four ilt vaccine viruses by polymerase chain reaction-restriction fragment length polymorphism analyses of icp4 and glycoprotein e genes, and partial sequencing of ... | 2006 | 16854641 |