Influenza A is further divided into subtypes. You may have heard of H1N1 or H3N2 – those are the two dominant types of influenza A circulating right now, according to the CDC.

The influenza virus that caused the 1968 pandemic, in contrast, had a different HA subtype, H3, and a different NA subtype as well, N2. As a result, it is classified as influenza A (H3N2).

The National Centre for Disease Control and local health authorities have reiterated general precautions given the rise in ...

Influenza A viruses are further classified into subtypes, with the A (H1N1) and A (H3N2) subtypes currently circulating in humans.

Influenza A (but not B) also has subtypes labeled H and N. These refer to hemagglutinin (H) and neuraminidase ( N), which are proteins on the surface of the virus.

Influenza viruses appear as three types. Type A infects a variety of birds and mammals, whereas B and C infect only humans. A and B cause epidemics; C is much less severe. Two proteins distinguish ...

Together, there are 29 different subtypes, creating more than 130 influenza A subtype combinations. However, influenza A subtypes that usually circulate in people are A (H1N1) and A (H3N2). Flu B ...

This approach has already yielded vaccine designs that can protect against entire flu subtypes, including the H1N1 viruses that caused the 2009 and 1918 pandemics.

Despite the extensive evolution in influenza A subtypes H1N1 and H3N2 over the study period, the team's model showed that early infection reduces the risk of people needing to seek medical ...

The findings, published in the journal PLOS Pathogens, report that mice vaccinated with an immune stimulating virus-like particle displaying multiple neuraminidase subtypes and conserved M2 ...

Influenza A is further divided into subtypes. You may have heard of H1N1 or H3N2 – those are the two dominant types of influenza A circulating right now, according to the CDC.