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 ...

Medical research

New drug could cure nearly any viral infection

Most bacterial infections can be treated with antibiotics such as penicillin, discovered decades ago. However, such drugs are useless against viral infections, including influenza, the common cold, and deadly hemorrhagic ...

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.

Medications

Oral drug blocks SARS-CoV-2 transmission

Treatment of SARS-CoV-2 infection with a new antiviral drug, MK-4482/EIDD-2801 or Molnupiravir, completely suppresses virus transmission within 24 hours, researchers in the Institute for Biomedical Sciences at Georgia State ...

Diseases, Conditions, Syndromes

Mystery of the pandemic flu virus of 1918 solved

A study led by Michael Worobey at the University of Arizona in Tucson provides the most conclusive answers yet to two of the world's foremost biomedical mysteries of the past century: the origin of the 1918 pandemic flu virus ...

Diseases, Conditions, Syndromes

Flu virus in pigs shows worrisome pandemic profile, study finds

Tests on the most common type of influenza found in Chinese pigs reveal that it has the potential to transmit easily in humans, posing a pandemic threat similar to the virus that triggered a pandemic in 2009 after jumping ...

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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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