H1N1

American  

Pathology.

1. a subtype of the type A influenza virus, with strains that give rise to seasonal epidemics, or sometimes pandemics, including a strain with swine, avian, and human genes responsible for swine flu.

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Etymology

Origin of H1N1

First recorded in 1970–75; abbreviation of h(aemagglutinin type)1 and n(euraminidase type) 1

Example Sentences

In the spring of 2009, a shift happened with an H1N1 strain, also known as swine flu.

From Salon

There are also signs a different strain of flu - H1N1 - is picking up in Europe and may lead to an increase in cases here too.

From BBC

While it’s a “mismatch” for the H3N2 strain, it’s still protects the H1N1 or influenza B components.

From Salon

There are multiple types of flu and you may have heard some of the names like H1N1 swine flu, which caused a pandemic in 2009, or H5N1 which is the current flu killing birds around the world.

From BBC

The number of children who died from flu last season was the highest since the H1N1 swine flu pandemic season of 2009-10, according to a recent report published in the CDC’s Morbidity and Mortality Weekly Report.

From Los Angeles Times