Human flu is a term used to refer to influenza cases caused by Orthomyxoviridae that are endemic to human populations (as opposed to infection relying upon zoonosis). It is an arbitrary categorization scheme, and is not associated with phylogenetics-based taxonomy. Human flu-causing viruses can belong to any of three major influenza-causing Orthomyxoviruses — Influenza A virus, Influenza B virus and Influenza C virus.
The annually updated trivalent influenza vaccine contains two hemagglutinin (HA) surface glycoprotein components from Influenza A virus strains and one from B influenza.
Most human flu is a non-pandemic flu that is slightly different from the main human flus that existed in last year's flu season period. This type of flu is also called "common flu" or "seasonal flu" or "annual flu". It causes yearly flu epidemics that are generally not deadly except to the very old or very young.
Other articles related to "flu, human flu, humans, human":
... Webster's work with the avian flu can be said to have sprung from a beach walk with fellow researcher Graeme Laver, on which the men noticed a large number of birds dead along the shoreline ... Webster wondered whether it was possible that the birds had died from the avian flu, and subsequently traveled to an island to take samples from hundreds of birds ... Webster discovered a link between the avian flu and the human flu ...
... remain an H5N1 subtype or could shift subtypes as did H2N2 when it evolved into the Hong Kong Flu strain of H3N2 ... genotypes of H5N1 that first appeared in China in 1996 in birds and in Hong Kong in 1997 in humans ... The "H5N1 viruses from human infections and the closely related avian viruses isolated in 2004 and 2005 belong to a single genotype, often referred to as genotype Z." This infection ...
... I were made by a Russian journalist in a 2004 handbook of human losses in the 20th century Kenya 30,000 Tanzania 100,000 Mozambique 50,000 Rwanda 15,000 Burundi 20,000 and the Belgian ... and German reprisals, and 30,000 by the Spanish Flu Prof. 300,000 were caused by military operations and food shortages, and 200,000 by the Spanish Flu Another estimate of the demographic loss of the civilian population in the France during the ...
... Flu due to the type C species is rare compared to types A or B, but can be severe and can cause local epidemics ...
... to the isolate that they are like and thus are presumed to share lineage (example Fujian flu virus like) according to their typical host (example Human flu virus) according to their subtype (example H3N2) and ... So a flu from a virus similar to the isolate A/Fujian/411/2002(H3N2) is called Fujian flu, human flu, and H3N2 flu ... Some variants named using this convention are Bird Flu Human Flu Swine Flu Horse Flu Dog Flu Avian variants have also sometimes been named according to their deadliness in poultry, especially chickens Low ...
Famous quotes containing the word human:
“The years-heired feature that can
In curve and voice and eye
Despise the human span
Of durancethat is I;
The eternal thing in man,
That heeds no call to die.”
—Thomas Hardy (18401928)