H5N3 is a subtype of the species Influenza A virus (sometimes called the bird flu virus). H5N3 was identified in Quebec in August 2005 [1] and in Sweden in October 2005. [2] H5N3 virus was identified at a farm in La Garnache, France in late January 2009. Ninety birds were found dead between 29 January 2009 and 31 January 2009.

Dec 20, 2024 · All known subtypes of influenza A viruses can infect birds, except subtypes A (H17N10) and A (H18N11), which have only been found in bats. Only two influenza A virus subtypes A (H1N1)pdm09, and A (H3N2), are currently circulating among people.

Sep 18, 2024 · Influenza A viruses are divided into subtypes based on two proteins on the surface of the virus: hemagglutinin (H) and neuraminidase (N). There are 18 different hemagglutinin subtypes and 11 different neuraminidase subtypes (H1 …

Subtyping the virus may be accomplished by HI and neuraminidase inhibition tests against a battery of polyclonal or monospecific antisera to each of the 16 hemagglutinin (H1–16) and 9 neuraminidase (N1–9) subtypes of influenza A virus.

Highly contagious in nature, influenza A subtypes have been behind four major pandemics: the 1918 Spanish flu; 1957 Asian flu; 1968 Hong Kong flu; and the 2009 swine flu (Saunders-Hastings and Krewski, 2016).

Many subtypes of influenza A viruses are neurotropic; therefore, in addition to respiratory symptoms, they may also cause CNS alterations, 82,83 including encephalitis and neuroinflammation, which may lead to neurodegeneration in the long term. 83,84 Influenza A virus infection is known to cause postencephalitic parkinsonism, as demonstrated by ...

Jan 16, 2025 · Recommendations for Clinical Laboratories Subtype and send respiratory specimens that are positive for influenza A but negative for seasonal influenza A virus subtypes [i.e., negative for A (H1) and A (H3)] to a public health laboratory as soon as possible and within 24 hours of obtaining the results.

Jan 15, 2025 · There are nine (9) known subtypes of A (H5) viruses: Most A (H5) viruses identified worldwide in wild birds and poultry are LPAI, but occasionally HPAI A (H5) viruses have been detected, including the ongoing HPAI H5N1 global outbreak.

In order to evaluate the variability of nonpathogenic influenza virus A/duck/Moscow/4182-C/2010(H5N3) and to determine the common epitopes between it and highly pathogenic H5N1 avian influenza viruses (HPAIV), a set of escape mutants was selected due to action of MABs specific against A/chicken/Pennsylvania/8125/83(H5N2), A/Vietnam/1203/04(H5N1)...

Avian influenza A viruses that have caused infection in humans include subtypes H5N1, H5N6, H5N8, H7N2, H7N3, H7N4, H7N7, H7N9, and H9N2 21.