Medical expert of the article

Infectious disease

New publications

Influenza B virus

Alexey Portnov, medical expert
Last reviewed: 23.04.2024

All iLive content is medically reviewed or fact checked to ensure as much factual accuracy as possible.

We have strict sourcing guidelines and only link to reputable media sites, academic research institutions and, whenever possible, medically peer reviewed studies. Note that the numbers in parentheses ([1], [2], etc.) are clickable links to these studies.

If you feel that any of our content is inaccurate, out-of-date, or otherwise questionable, please select it and press Ctrl + Enter.

Symptoms

Diagnostics
Prevention

The structure of the virion of the influenza B virus is similar to the structure of the influenza A virus. The genome consists of 8 fragments encoding 3 non-structural and 7 structural proteins. Antigenic properties of hemagglutinin and neuraminidase distinguish several serovariants. Antigenic drift is less pronounced than in virus A. Influenza type B viruses are responsible for local outbreaks and epidemics; pandemics do not cause.

trusted-source [1], [2], [3], [4], [5], [6], [7]

Symptoms of influenza B

Symptoms of influenza B are the same as those of influenza type A.

Diagnosis of influenza B

Laboratory diagnosis of influenza B is the same, the virus differentiates serologically.

trusted-source [8], [9], [10], [11], [12],

How to Prevent Flu B?

Specific prevention of influenza B is carried out in the same way as against influenza A.