Medical research

Fighting infections and resistances

Winter is influenza season. In the northern hemisphere, cases of this infectious disease peak between November and March, and fatalities are not uncommon. Influenza vaccines can protect against the illness, but they aren't ...

Immunology

Ketogenic diet helps tame flu virus

A high-fat, low-carbohydrate diet like the Keto regimen has its fans, but influenza apparently isn't one of them.

Diseases, Conditions, Syndromes

Do I have the flu or not?

A person has all the signs of flu: fever, chills, cough, headache and fatigue. But just because the signs are there, it's not a foregone conclusion that flu is the cause as there are other viruses and illnesses with shared ...

Medical research

Flu antibody protects against numerous and wide-ranging strains

Researchers have found an antibody that protects mice against a wide range of lethal influenza viruses, according to a study from Washington University School of Medicine in St. Louis, Icahn School of Medicine at Mount Sinai ...

Diseases, Conditions, Syndromes

Researchers bring us one step closer to universal influenza vaccine

The scourge of the influenza virus devastates health and claims many lives worldwide each year. It is especially daunting because vaccines are only protective when they are well matched to the strains circulating in the population. ...

Diseases, Conditions, Syndromes

CDC: Seasonal influenza viruses circulating in southern hemisphere

(HealthDay)—Seasonal influenza viruses are circulating widely in the Southern Hemisphere, but influenza activity is currently low in the United States, according to research published in the Oct. 11 issue of the U.S. Centers ...

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Orthomyxoviridae

Influenzavirus A Influenzavirus B Influenzavirus C Isavirus Thogotovirus

The Orthomyxoviridae (orthos, Greek for "straight"; myxa, Greek for "mucus") are a family of RNA viruses that includes five genera: Influenzavirus A, Influenzavirus B, Influenzavirus C, Isavirus and Thogotovirus. The first three genera contain viruses that cause influenza in vertebrates, including birds (see also avian influenza), humans, and other mammals. Isaviruses infect salmon; thogotoviruses infect vertebrates and invertebrates, such as mosquitoes and sea lice.

The three genera of Influenzavirus, which are identified by antigenic differences in their nucleoprotein and matrix protein infect vertebrates as follows:

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