Diseases, Conditions, Syndromes

COVID-19 is here. How long will it last?

With COVID-19 case numbers climbing dramatically in the United States and millions of people sheltered in their homes to help quell the outbreak, many are asking the obvious question: How long will all this last? Yale School ...

Diseases, Conditions, Syndromes

How does COVID-19 compare with the flu?

The new coronavirus that causes COVID-19 in many ways is exactly the type of situation that has motivated Jonathan Runstadler, a professor in the Department of Infectious Diseases and Global Health at Cummings School, and ...

Vaccination

Is a 'universal' flu vaccine on the horizon?

(HealthDay)—Work is proceeding apace on a "universal" flu vaccine capable of protecting humans from all forms of influenza, researchers report.

Medical research

Obesity promotes virulence of influenza

Obesity promotes the virulence of the influenza virus, according to a study conducted in mice published in mBio, an open-access journal of the American Society for Microbiology. The finding could explain, in part, why the ...

Diseases, Conditions, Syndromes

Infectious diseases A-Z: Flu vaccine is a good match

The flu vaccine is a good match for the 2019-2020 flu season, reports the Centers for Disease Control and Prevention (CDC). Efficacy of the vaccine is estimated to be 45% so far this season. The CDC says the vaccine was even ...

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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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