What is the structure of the influenza virus What are its unique characteristics?

The physical characteristics of influenza viruses are that they are single-stranded, RNA viruses enclosed in a helical nucleocapsid. On the outside, these viruses are enveloped. Two important proteins are found on surface of this envelope: hemagglutinin and neurominidase.

Moreover, what makes influenza unique?

The most outstanding characteristic of influenza viruses is their rapid evolution which leads to its great variability. This is the case especially with influenza A viruses. According to the antigenic properties of their envelope proteins, influenza A viruses are subdivided into a number of subtypes.

Likewise, what is the function of the influenza virus?

The influenza virus NA executes several functions. Firstly, its activity is required at the time of the budding of newly formed viral particles from the surface of the infected cell, to prevent aggregation of viral particles.

Where does the influenza virus come from?

Answer: Influenza is a virus that’s spread from person to person. It originates, actually, among birds and other animals such as pigs, and new viral strains of influenza come to this country and to Europe from Southeast Asia.

What is the role of neuraminidase in influenza?

Neuraminidases are enzymes that cleave sialic acid groups from glycoproteins and are required for influenza virus replication. When influenza virus replicates, it attaches to the interior cell surface using hemagglutinin, a molecule found on the surface of the virus that binds to sialic acid groups.

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