Currently, two distinct lineages of influenza B virus (IBV), B/Victoria and B/Yamagata
lineage, have been co‐circulating in human beings. Assessment of the prevalent lineage is …

Contemporary influenza B viruses are classified into two groups known as Yamagata and
Victoria lineages. The co‐circulation of two viral lineages in recent years urges for a robust …

Since the late 1980s, two genetically and antigenically distinct lineages of influenza B virus,
namely, B/Victoria/2/87-like (B/Victoria) and B/Yamagata/16/88-like (B/Yamagata), have co …

Type B influenza virus is one of the major epidemic strains and responsible for considerable
mortality and morbidity. Rapidly and accurately identifying different influenza B virus …

Influenza B viruses comprise two lineages, Victoria (B/Vic) and Yamagata (B/Yam), which co-
circulate globally. The surveillance data on influenza B virus lineages in many countries …

Since the 1970s, influenza B viruses have diverged into two antigenically distinct virus
lineages called the Yamagata and Victoria lineages. We present the first real-time PCR …

Background: Influenza viruses type A and type B are a leading cause of annual epidemics in
human populations. Since the 1970s, influenza B viruses have diverged into two …

Abstract Background Recent influenza B/Victoria lineage viruses contain amino acid
deletions at positions 162 to 164 of the haemagglutinin (HA) protein. These amino acid …

Background Influenza B viruses belong to two antigenically and genetically distinct lineages
which co-circulate in varying proportions in many countries. Objective To develop simple …

Abstract During 2016/2017, several antigenically and genetically distinct variant viruses of
the influenza B/Victoria/2/87-lineage (B/Vic) viruses, which have either deletions or …