The use of RT-PCR in the diagnosis and differentiation of vaccine strains of chicken infectious bronchitis and Newcastle disease

Abstract

Background: Infectious diseases of young and adult birds with respiratory syndrome are a significant deterrent to the
development of industrial poultry farming due to decreased productivity and significant mortality. The only effective
method of combating viral diseases is timely and targeted vaccination, which largely depends on laboratory diagnostic
results.
Aim: This article aims to study the real-time reverse transcription polymerase chain reaction, (RT-PCR) which has the
prospect of more effective diagnosis of vaccine strains of chicken infectious bronchitis and Newcastle disease.
Methods: The fastest and most accurate method for the differential diagnosis of pathogens in an associative viral
infection is RT-PCR. The method proposed in the article for selecting primers for amplification made it possible to use this method for the simultaneous interspecies differential diagnosis of two or more viral agents, significantly accelerating their diagnosis.
Results: The correlation of the nucleotide sequence obtained from sequencing to a specific virus strain is complicated
by the lack of a single nomenclature mechanism for separating genetic groups.
Conclusion: The results of this study will allow easy and fast typing of sequences into known and databased virus strains and avoid further confusion in the nomenclature of genetic groups in the future.