Version 2.77


Influenza virus from the family Orthomyxoviridae are enveloped negative-strand RNA viruses with segmented genomes containing seven to eight gene segments. Of the five genera in the family, only influenza A virus (IAV), influenza B and C viruses are medically relevant to humans. Influenza A and B viruses have a similar structure whereby these viruses each contain eight discrete single-stranded RNA gene segments, each encoding at least one protein. While having a close phylogenetic relationship, influenza virus types A and B manifest very differently. While IAV infects birds, humans and other mammals, influenza B only infects humans and seals. Although both viruses cause human respiratory infection seasonally in temperate climate regions and more continually in the tropics, influenza B is normally less prevalent and causes less severe disease than IAV viruses. Research is ongoing to determine the evolutionary and epidemiological factors that shape the genetic diversity of influenza B virus. PMID: 25812763 [CDC:flu/about/viruses/types] Source: Regenstrief LOINC

Basic Part Properties

Part Display Name
Influenza virus B
Part Type
Component (Describes the core component or analyte measured)
Created On
Construct for LOINC Short Name

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Language Variants Get Info

Tag Language Translation
zh-CN Chinese (China) 流感病毒 B 型
Synonyms: B 型流感;B 型流感病毒;FLUB;FLUBV;乙型流感;乙型流感病毒;流感 B;流感 B 型;流感乙型;流感病毒乙型
fr-CA French (Canada) Virus de l'influenza B
et-EE Estonian (Estonia) B-gripi viirus
es-ES Spanish (Spain) Virus Influenza B
it-IT Italian (Italy) Influenza B, virus
Synonyms: Virus dell''influenza B
tr-TR Turkish (Turkey) İnfluenza virüsü B
ru-RU Russian (Russian Federation) Грипп вирус В
nl-NL Dutch (Netherlands) Influenzavirus B
fr-BE French (Belgium) Virus de l'influenza B
Synonyms: FLU B virus
pl-PL Polish (Poland) Influenza wirus B
Synonyms: Wirus grypy typu B