Influenza viruses like bird flu can mix and match their genomes, and this has played a role in at least three of the last ...

Influenza A virus belongs to the Orthomyxoviridae family, and produces virions of around 80–120 nm in diameter that contain an RNA genome of approximately 13.5 kb in size.

Influenza A is believed to be the most severe type of flu virus for humans, although this is the subject of debate, as there is some evidence to suggest that influenza B might be equally as dangerous.

The influenza virus resurrected itself again in March–April 2009, when a novel strain was isolated from humans in Mexico and the USA, followed by a worldwide spread across 214 countries, causing ...

There are two players every flu season: influenza Type A and Type B. Influenza A tends to pop up early in the season and accounts for more than 75 percent of all cases, while influenza B typically ...

The highly pathogenic avian influenza virus H5N1 has adapted to spread between birds and marine mammals, posing an immediate threat to wildlife conservation, according to a study from the University ...

The virus—known as H5N1—is an influenza virus. It’s different from the seasonal influenza viruses that circulate each winter, which primarily sicken people. H5N1 is one of many influenza ...

Influenza A can also infect other animals, notably birds (e.g., the H5N1 subtype behind the ongoing outbreak) and pigs (such as in the 2009 H1N1 "Swine Flu" pandemic). In contrast, influenza B can ...

Avian influenza A(H5N1) virus is spreading through dairy herds across the United States. In this report, wastewater surveillance shows the increase of H5N1 across 10 urban communities.

This year’s respiratory virus season is set to be a repeat of last year’s, with COVID-19, RSV and influenza impacting the health care system at the same time, per the CDC ...

As the Centers for Disease Control and Prevention (CDC) explains, bird flu is a disease caused by the influenza A virus. At the same time, recent CDC data shows that seasonal influenza A is rising ...