three subtypes of hemagglutinin (H1, H2, and H3) and two subtypes of neuraminidase (N1 and N2) have caused sustained epidemics in the human population. Birds are hosts for all influenza A subtypes ...

Through this investigation, Reid was able to map a gene called the hemagglutinin, which is key to allowing the influenza virus to take hold. Reid reported that the hemagglutinin closely resembles ...

As schools reopen, the Korea Disease Control and Prevention Agency (KDCA) reports an uptick in flu cases following a recent ...

Two surface glycoproteins, hemagglutinin (HA) and neuraminidase (NA), and the M2 ion-channel protein are embedded in the viral envelope, which is derived from the host's plasma membrane.

Antigenic drift refers to small, gradual mutations in the influenza virus’s surface proteins (like hemagglutinin and neuraminidase), allowing it to evade immune recognition over time.

The isolation of influenza virus 80 years ago in 1933 ... for viruses isolated during the 1900s); The subtype [16 possible hemagglutinin and 9 possible neuraminidase subtypes].

The joint assessment of recent influenza A(H5) virus events in animals and people is based on data as of March 1, 2025.

And the influenza viruses are classified based on the different hemagglutinin and neuraminidase proteins on the surface of the viruses. And there are 14 hemagglutinin type subtypes and 9 ...

Influenza viruses are covered with two lollipop-shaped proteins called hemagglutinin and neuraminidase, for which the viruses are named (H5N1, for example). These proteins are what allows a virus ...

Computational modelling of immunoprotein interactions of variants of avian influenza has shown that H5N1 virus has begun to ...