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Influenza A virus (IAV) is the only species of the genus Alphainfluenzavirus of the virus family Orthomyxoviridae. [1] It is a pathogen with strains that infect birds and some mammals, as well as causing seasonal flu in humans. [2]
Because of that, both avian and mammalian influenza viruses can infect pigs. If co-infection occurs, reassortment is possible. [20] A notable example of this was the reassortment of a swine, avian, and human influenza virus that caused the 2009 flu pandemic. [20] [4] Spillover events from humans to pigs appear to be more common than from pigs ...
Influenza A is really the only flu virus type that can cause a pandemic, says Beth Oller, MD, a practicing family physician in Stockton, Kansas. A flu pandemic is when a new type of influenza ...
The G4 virus, also known as the "G4 swine flu virus" (G4) and "G4 EA H1N1", is a swine influenza virus strain discovered in China. [68] The virus is a variant genotype 4 (G4) Eurasian avian-like (EA) H1N1 virus that mainly affects pigs, but there is some evidence of it infecting people. [68]
The 24-hour flu can be miserable. Here’s what usually causes it, plus how to treat it. ... including viruses and bacteria. ... Norovirus is a highly contagious virus that causes vomiting and ...
Seasonal flu viruses are dominated by influenza A and B. Most seasonal flu viruses are influenza type A, which usually start earlier in the season, with type B viruses circulating later in the winter.
1 Bacterial. 2 Viral. 3 Fungal. 4 Protozoan. ... other than the most common ones, that cause flu-like syndrome (influenza-like illness ... (Coxsackie B virus) COVID ...
What are the different types of influenza virus? There are four different types of influenza virus: A, B, C, and D. Influenza C usually causes only mild illness while D mostly affects animals ...