Thelansis

  Influenza B is a prevalent respiratory infection. Approximately 20-30% of diagnosed cases of influenza viral infections can be attributed to the influenza B virus. Similar to the influenza A virus, the influenza B virus belongs to the family Orthomyxoviridae. Both viruses possess segments 1, 3, 4, and 5, denoted as FLUA and FLUB, which encode a single protein per segment: PB2, PA, HA, and NP proteins. However, there are a few notable distinctions in influenza B viruses. For instance, segment 2 of FLUAV encodes the polymerase subunit PB1. In certain strains, this segment may also encode a small accessory protein called PB1-F2, which exhibits apoptotic activity. Influenza B viruses are classified into two lineages: B/Yamagata and B/Victoria. Additionally, IFB viruses are further categorized into specific clades and sub-clades. The B/Victoria clades encompass V1A, while the subclades consist of V1A.1, V1A.2, and V1A.3. The B/Yamagata clades encompass Y1, Y2, and Y3, without any subcla

 Influenza B is a prevalent respiratory infection. Approximately 20-30% of diagnosed cases of influenza viral infections can be attributed to the influenza B virus. Similar to the influenza A virus, the influenza B virus belongs to the family Orthomyxoviridae. Both viruses possess segments 1, 3, 4, and 5, denoted as FLUA and FLUB, which encode a single protein per segment: PB2, PA, HA, and NP proteins. However, there are a few notable distinctions in influenza B viruses. For instance, segment 2 of FLUAV encodes the polymerase subunit PB1. In certain strains, this segment may also encode a small accessory protein called PB1-F2, which exhibits apoptotic activity. Influenza B viruses are classified into two lineages: B/Yamagata and B/Victoria. Additionally, IFB viruses are further categorized into specific clades and sub-clades. The B/Victoria clades encompass V1A, while the subclades consist of V1A.1, V1A.2, and V1A.3. The B/Yamagata clades encompass Y1, Y2, and Y3, without any subclades