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.

Influenza Immunization

Influenza Epidemiology

Influenza Prognosis

Influenza Symptoms

Influenza Treatments

Influenza Pandemics

Influenza Research

Influenza Infection in Animals

Latest Influenza News and Research

COVID-19 mitigation efforts significantly decrease influenza activity

The mitigation strategies implemented to curb the spread of COVID-19 appears to reduce the transmission of influenza in the United States, Australia, Chile, and South Africa. These strategies may augment influenza vaccines, especially for high-risk populations during the seasonal influenza transmission.

21 Sep 2020

Experimental cancer drug inhibits SARS-CoV-2 virus, VCU study finds

A team of scientists led by Paul Dent, Ph.D., at Virginia Commonwealth University Massey Cancer Center has discovered that an experimental cancer drug called AR-12 inhibits the SARS-CoV-2 virus, the cause of the COVID-19 pandemic, from infecting cells and replicating.

21 Sep 2020

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

A new Cleveland Clinic study has found that receiving the influenza vaccine does not increase a person's risk for contracting COVID-19 or worsen associated morbidity or mortality.

21 Sep 2020

CDC updates coronavirus guidelines to recognize airborne spread

Early on in the pandemic, it was thought that the virus was only spread via respiratory droplets. However, scientific research soon showed it also to be an airborne virus. Now, the U.S. Centers for Disease Control and Prevention (CDC) has updated its guideline, acknowledging that the virus can hang in the air, fueling its spread.

21 Sep 2020

COVAM assay may help select convalescent plasma units for treatment of acute COVID-19

A recent study published on the preprint server bioRxiv* seeks to establish the pattern of antibody reactivity in COVID-19 convalescent plasma (CCP), which is widely being used as a therapy for seriously ill COVID-19 patients.

21 Sep 2020

In vitro testing suggests effective novel drug combinations for SARS-CoV-2

A recent study published on the preprint server bioRxiv* in September 2020 shows the value of drug combinations to enhance the therapeutic and preventive efficacy of such repositioned drugs in standard antiviral therapy.

20 Sep 2020

Researchers try and pop SARS-CoV-2 with an AFM tip - virion surprisingly resilient

Researchers at Semmelweis University and the National Public Health Center in Hungary have conducted an imaging study showing that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the agent responsible for coronavirus disease 2019 (COVID-19), is a highly dynamic and resilient virus

20 Sep 2020

S-pseudotyped VLPs offer promising COVID-19 vaccine platform

A new study published on the preprint server bioRxiv* in September 2020 reports on a Moloney murine leukemia virus (MLV) platform that produces VLPs expressing the important spike antigen of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

18 Sep 2020

Optimal antibody combinations and Fc binding inhibit SARS-CoV-2 in vivo

A recent study by researchers at the University of North Carolina at Chapel Hill and The Rockefeller University and published on the preprint server bioRxiv in September 2020 shows that a combination of neutralizing antibodies with intact Fc effector function can effectively reduce the viral load and prevent infection.

17 Sep 2020

Azelastine antihistamine inhibits SARS-CoV-2 infection in nasal tissue in vitro

In a study published on the bioRxiv preprint server, researchers from the University of Pécs, University of Vienna, and CEBINA GmbH, Vienna, show the ability of the antihistamine azelastine to inhibit SARS-CoV-2 infection in human nasal tissue in vitro.

16 Sep 2020

SARS-CoV-2 with D614G mutation is prevalent in central India

A team of scientists at the Defence Research and Development Establishment, India, reveals that there are multiple viral introduction events in central India, and SARS-CoV-2 with D614G mutation is the prevalently circulating strain.

16 Sep 2020

Tough to tell COVID from smoke inhalation symptoms — and flu season’s coming

The patients walk into Dr. Melissa Marshall's community clinics in Northern California with the telltale symptoms. They're having trouble breathing. It may even hurt to inhale. They've got a cough, and the sore throat is definitely there.

16 Sep 2020

Can amodiaquine short circuit this pandemic?

A recent study by the US researchers highlights the value of the human organ chip technology as a more robust and physiologically relevant platform for rapid drug repurposing, and suggest that amodiaquine may be used to prevent the infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).

15 Sep 2020

Circadian rhythm affects SARS-CoV-2 infection and host immune response

In an interesting bioRxiv preprint paper, French researchers show that the time day can affect infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), as well as guide subsequent host immune response – implying that circadian rhythm may well be a novel target for managing viral progression.

14 Sep 2020

Keto diet could be beneficial for elderly COVID-19 patients

A recent study by researchers at Yale School of Medicine, New York University Langone Health and Washington University School of Medicine, claims that the ketogenic diet (high fat, low carbohydrate diet) is capable of mitigating clinical outcomes of coronavirus disease 2019 (COVID-19) in elderly people by improving immune-metabolic functions and reducing inflammation. The study is currently available on the bioRxiv* preprint server.

14 Sep 2020

Children's Hospital Los Angeles is U.S. site for new study of SARS-CoV-2 spread within households

One of the mysteries about severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus that causes COVID-19, is how it is spread within households, including why some family members develop the viral infection and others do not.

14 Sep 2020

Should a COVID-19 vaccine be mandatory for children?

As the search for a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine continues, with some candidate vaccines nearing the completion Phase III clinical trials, a trio of experts weighs in with some sound reasoning as to whether any future vaccine should be considered mandatory for children. The viewpoint article is published in the journal JAMA Pediatrics in September 2020.

14 Sep 2020

Potential sea animal reservoirs for coronaviruses?

The COVID-19 pandemic has focused, yet again, intense research interest on coronaviruses, due to the high toll the novel coronavirus SARS-CoV-2 has taken on human life, health, economic well-being, and social activity. A recent paper published on the server Preprints in September 2020 reviews what is known about this viral infection in water life.

13 Sep 2020

Climatic changes may potentially impact COVID-19 pandemic

A recent epidemiological study by Princeton University researchers suggests that the severity of coronavirus disease 2019 (COVID-19) outbreak during the winter season depends on the susceptibility of the population to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-induced infection as well as the effectiveness of non-pharmaceutical control measures applied to control the virus spread.

13 Sep 2020

Middle-aged adults may be in a perpetual state of H3N2 flu virus vulnerability

Penn Medicine researchers have found that middle-aged individuals -- those born in the late 1960s and the 1970s -- may be in a perpetual state of H3N2 influenza virus susceptibility because their antibodies bind to H3N2 viruses but fail to prevent infections, according to a new study led by Scott Hensley, PhD, an associate professor of Microbiology at the Perelman School of Medicine at the University of Pennsylvania.

12 Sep 2020