Influenza

Influenza (the flu) is a contagious respiratory illness caused by influenza viruses. It can cause mild to severe illness, and at times can lead to death. The best way to prevent the flu is by getting a flu vaccination each year. Every year in the United States, on average 5% to 20% of the population gets the flu; more than 200,000 people are hospitalized from flu complications, and; about 36,000 people die from flu-related causes. Some people, such as older people, young children, and people with certain health conditions, are at high risk for serious flu complications.
Types of Influenza

Influenza is caused by three types of RNA viruses called influenza types A, B and C (considered different genera), which all belong to the family Orthomyxoviridae. The disease, colloquially called "flu" in humans, is generally caused by the viruses A and B, which are transmitted by aerosols from infected individuals or via close contact with infected animals.

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Latest Influenza News and Research

About 10% patients with severe disease create auto-antibodies that attack the immune system

About 10% patients with severe disease create auto-antibodies that attack the immune system

Faulty genes and an autoimmune condition linked to severe COVID-19 in young, healthy people

Faulty genes and an autoimmune condition linked to severe COVID-19 in young, healthy people

New studies report specific mechanisms of impaired type I interferon signaling in COVID-19 patients

New studies report specific mechanisms of impaired type I interferon signaling in COVID-19 patients

Individuals with severe forms of COVID-19 disease can have compromised type I interferon responses

Individuals with severe forms of COVID-19 disease can have compromised type I interferon responses

New study may explain why more men than women die from COVID-19

New study may explain why more men than women die from COVID-19

New antibodies protect mice against lethal infections of influenza B virus

New antibodies protect mice against lethal infections of influenza B virus

Climate anomaly exacerbated WWI mortality and the Spanish flu pandemic

Climate anomaly exacerbated WWI mortality and the Spanish flu pandemic

Experimental cancer drug AR-12 inhibits SARS-CoV-2 virus

Experimental cancer drug AR-12 inhibits SARS-CoV-2 virus

AI used to define the cytokine storm implicated in fatal COVID-19

AI used to define the cytokine storm implicated in fatal COVID-19

Aerosol-based study of COVID-19 risk indoors, and the impact of preventive measures

Aerosol-based study of COVID-19 risk indoors, and the impact of preventive measures

Elegant, efficient way to find recombinant SARS-CoV-2 viruses from >85,000 genomes

Elegant, efficient way to find recombinant SARS-CoV-2 viruses from >85,000 genomes

New T-cell-based vaccine strategy provides broader protection against seasonal influenza

New T-cell-based vaccine strategy provides broader protection against seasonal influenza

Infants born to women with COVID-19 show few adverse outcomes

Infants born to women with COVID-19 show few adverse outcomes

Common genetic variants may influence susceptibility to COVID-19

Common genetic variants may influence susceptibility to COVID-19

Research explains why flu is dangerous for pregnant women

Research explains why flu is dangerous for pregnant women

Parkinson's disease diagnosed after SARS-CoV-2

Parkinson's disease diagnosed after SARS-CoV-2

Researchers examine the impact of human movement on disease spread

Researchers examine the impact of human movement on disease spread

Respiratory specimens testing positive for SARS-CoV-2 decrease in the U.S., CDC report

Respiratory specimens testing positive for SARS-CoV-2 decrease in the U.S., CDC report

COVID-19 mitigation efforts significantly decrease influenza activity

COVID-19 mitigation efforts significantly decrease influenza activity

Flu vaccine does not increase a person's COVID-19 risk, finds study

Flu vaccine does not increase a person's COVID-19 risk, finds study