Diseases, Conditions, Syndromes

An expert explains viral variants, mutations and strains

What are variants? We asked Divya Shah, Epidemics Research Lead, to explain how variants happen, what they mean for treatments and vaccines—including for COVID-19—and how we can prevent them.

Medical research

How SARS-CoV-2 might become endemic

Endemic viruses are those that have constant presence within a geographical area. Such viruses are all around us, though they vary by location. Examples in Europe and North America include the rhinovirus (a cause of the common ...

Diseases, Conditions, Syndromes

Unusual 2019-2020 flu season linked to more transmissible strain

The 2019-2020 flu season in the U.S. was unusual in a number of ways. Cases picked up in August rather than the more typical fall and early winter months, and it hit children particularly hard. It was also dominated early ...

Diseases, Conditions, Syndromes

What history tells us about the long-term effects of a pandemic

For nearly a year, the novel coronavirus and the resulting COVID-19 pandemic have dominated headlines across the world, and justifiably so. With nearly 68 million cases reported and more than 1.5 million deaths worldwide ...

Diseases, Conditions, Syndromes

Researchers advance a universal influenza virus vaccine

A vaccine that induces immune responses to a wide spectrum of influenza virus strains and subtypes has produced strong and durable results in early-stage clinical trials in humans, Mount Sinai researchers have found. The ...

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 ...

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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:

This text uses material from Wikipedia, licensed under CC BY-SA