https://andarineagonist.com/dy....namics-regarding-pho
Introduction. Influenza viruses evolve quickly and change their particular antigenic qualities, necessitating biannual changes of flu vaccines.Aim. The aim of this research would be to define influenza viruses circulating in Bulgaria during the 2018/2019 season also to identify amino acid substitutions inside them which may influence vaccine effectiveness.Methodology. Typing/subtyping of influenza viruses had been performed utilizing real-time Reverse Transcription-PCR