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It's flu season right now, and the U.S. is in the midst of a wave that's straining hospitals. But not all influenza is the same. There are some notable differences between flu A and flu B strains ...
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, especially cattle.
Influenza B virus mainly infects humans but has been identified in seals, horses, dogs, and pigs. [23] Influenza B virus does not have subtypes like influenza A virus but has two antigenically distinct lineages, termed the B/Victoria/2/1987-like and B/Yamagata/16/1988-like lineages, [1] or simply (B/)Victoria(-like) and (B/)Yamagata(-like).
Ah, January. The season of new beginnings, icy winds, and respiratory infections. With a “quad-demic” of diseases circulating the country—flu, COVID, respiratory syncytial virus (RSV), and ...
Flu season is an annually recurring time period characterized by the prevalence of an outbreak of influenza, caused either by Influenza A or by Influenza B. The season occurs during the cold half of the year in temperate regions; November through February in the northern hemisphere and May to October in the southern hemisphere.
[3] [4] RIDTs have been shown to reduce chest radiography and blood tests in ambulatory care settings, but not antibiotic prescribing, or time in the emergency department. [ 5 ] According to a study, an H1N1 rapid test had a sensitivity of 66 %, corresponding to a false-negative probability of 34 % in detecting H1N1.
Illustration showing influenza virus attaching to cell membrane via the surface protein hemagglutinin. Hemagglutinins (alternatively spelt haemagglutinin, from the Greek haima, 'blood' + Latin gluten, 'glue') are homotrimeric glycoproteins present on the protein capsids of viruses in the Paramyxoviridae and Orthomyxoviridae families.
Influenza B virus is the only species in the genus Betainfluenzavirus in the virus family Orthomyxoviridae.. Influenza B virus is a negative-sense single-strand RNA virus known only to infect certain mammal species, including humans, ferrets, pigs, and seals.