Between 2013 and 2014, the H5N8 virus was … Reports of an H5N8 influenza virus spreading among birds across the globe understandably have generated concern. In May 2016, a highly pathogenic avian influenza A (H5N8) virus strain caused deaths among 3 species of wild migratory birds in Qinghai Lake, China. H 5 N 8 is a subtype of the influenza A virus (sometimes called bird flu) and is highly lethal to wild birds and poultry. The majority of [1] Fan S1, Zhou L, Wu D, Gao X, Pei E, Wang T, Gao Y, Xia X., A novel highly pathogenic H5N8 avian influenza virus isolated from a wild duck in China. The strain is compatible with EA-H5N8. Whole-genome phylogeny showed the virus clustered with H5N8 clade 2.3.4.4B strains from birds in central and southern Asia. The subtype H5N8 is an avian influenza virus that is highly pathogenic for domestic poultry, as turkeys and chickens. On February 12, 2015, the infection was confirmed as influenza A virus subtype H5N8. H5N8 highly pathogenic avian influenza (HPAI) virus of avian origin has been detected for the first time in people, reports The Moscow Times. The movement of highly pathogenic avian influenza (H5N8) virus across Eurasia and into North America and the virus’ propensity to reassort with co-circulating low pathogenicity viruses raise concerns among poultry producers, wildlife biologists, aviculturists, and … On February 12, 2015, the infection was confirmed as influenza A virus subtype H5N8. Vet. Conclusion of current human risk of the avian influenza A (H5N8) virus Avian influenza is caused by those influenza viruses that mainly affect birds and poultry, such as chickens or ducks. Around 5,000 waterfowl and 20,500 poultry of unspecified type tested positive for this virus on February 25 and March 1, respectively. … Most forms of the virus are restricted to birds. In 2016, H5N8 avian influenza outbreaks occurred in many European countries, causing a large number of deaths of poultry and wild birds. This is the first reported detection of this strain of avian influenza in humans. The first confirmed outbreak of highly pathogenic avian influenza virus (HPAIV) in birds was documented in Scotland in 1959 with the influenza A H5N1 subtype, although there have been numerous suspected HPAIV outbreaks documented globally since 1878. Keywords: avian influenza virus, H5N8 subtype, influenza virus, viruses, influenza, virus reassortment, domestic ducks, poultry, eastern China Avian influenza viruses are members of the family Orthomyxoviridae and contain 8 segments of single-stranded RNA with negative polarity ( 1 ). In 2014 this involved an H5N8 avian influenza virus, and in 2016 it also concerned an H5N8 avian influenza virus, but with a different genetic composition. H5N1 and its genetic reassortants (including H5N2, H5N5, H5N6, and H5N8) have been found to cause thousands of … Through surveillance of LPMs from 16 provinces and municipalities in China during 2014-2016, we identified 3,1 … Emerging H5N8 avian influenza viruses. Russia over the weekend reported cases of the first known H5N8 avian flu infection in humans and said it has reported the findings to the World Health Organization (WHO). Emergence of this virus in central Africa represents a threat for animal health and … In 2017, highly pathogenic avian influenza A(H5N8) virus was detected in poultry in the Democratic Republic of the Congo. As of 23 March 2017, a total of 484 confirmed outbreaks were reported, with … However, it should be noted that level of surveillance and information is limited from across the Middle East region where H5N8 HPAI may be widespread, and Over the past week, the French veterinary authority has officially registered two new outbreaks of HPAI in poultry linked to the H5N8 virus variant. The virus was first detected in 1996 in geese in China. Highly pathogenic avian influenza viruses were previously introduced to the Netherlands by wild migratory birds, after which several poultry farms became infected. A strain of avian flu, previously detected in Europe and Asia, has jumped from animals to humans in Russia. Avian influenza A (H5N8) is an emergent, highly pathogenic avian influenza ( HPAI) virus that affects birds. Feb 28 OIE report on H5N8 … The virus remains purely avian-adapted and no markers for mammalian adaptation, pathogenicity for humans or altered susceptibility to … doi: 10.1016/j.vetmic.2014.08.002 Many different combinations of HA and NA proteins are possible. Highly pathogenic avian influenza (HPAI) H5N8 viruses that emerged in poultry in East Asia spread to Europe and North America by late 2014. What on earth does it all mean Emerging H5N8 avian influenza viruses. On March 4 2021, an outbreak of highly pathogenic avian influenza H5N8 has been confirmed in a gamebird holding with approximately 1000 pheasants, 50 chickens and 2 peacocks near the town … Other avian flu developments. In recent decades, dozens of countries across the world have seen cases of poultry and wild birds falling sick with influenza A H5N8, a highly pathogenic avian influenza virus (AIV). Influenza A (H5N8) viruses isolated from this poultry outbreak in Astrakhan belonged to clade 2.3.4.4b of avian influenza A (H5Nx) viruses. The pandemic influenza strain, or swine flu, that spread globally in 2009 was referred to as H1N1 and the new bird flu currently… H1N1, H5N1, H7N9? There is no immediate public health concern with this Avian Influenza Virus strain or the others that have been found in the Pacific Flyway since December 2014. The first confirmed outbreak of highly pathogenic avian influenza virus (HPAIV) in birds was documented in Scotland in 1959 with the influenza A H5N1 subtype, although there have been numerous suspected HPAIV outbreaks documented globally since 1878. The 2nd Ceva Avian Influenza Summit is an event to discuss current issues on avian influenza, the lessons learned and the value of the modern vaccination in the reduction of shedding and spreading of the field virus to better control the disease. Influenza A (H5N8) virus: According to Paris-based World Organisation for Animal Health, H5N8 avian influenza is a disease of birds, caused by Type “A” influenza viruses, which can affect several species of domestic poultry, such as chickens, turkeys, quails, guinea fowl, ducks, as well as pet birds, wild … A novel highly pathogenic H5N8 avian influenza virus isolated from a wild duck in China. German animal health officials today reported another H5N8 outbreak, this time in poultry at a zoo in Mecklenburg-Vorpommern state, located in the northern part of the country. AI viruses are members of the family Orthmyxoviridae, Type A which is subdivided into categories (strains) depending … Influenza Other Respir Viruses 8, … On 4 February 2020, Saudi Arabiangovernment reported an outbreak of the highly pathogenic H5N8 virus on a poultry farm. Despite being related, the H5N8 virus has a different combination of genes from the H5N1 virus, enabling it to be distinguished from the latter. The emergence and global spread of the highly pathogenic H5N8 avian influenza virus (AIV), a pathogen that has caused continuous and ongoing outbreaks with massive mortality in both wild and farmed birds across Eurasia and Africa throughout 2020, represents a considerable public health concern — particularly considering the first human cases of H5N8 infection were first reported last … Popova praised "the important scientific discovery", saying "time will tell" if the virus can further mutate. (Reuters) – China’s agriculture ministry on Wednesday said it had confirmed an outbreak of H5N8 avian influenza in a flock of wild birds at a wetlands park in the city of Nagqu in Tibet. Food standards bodies advise that avian influenza poses a very low food safety risk for UK consumers, and it does not affect the consumption of poultry products … There are different subtypes of avian influenza viruses. Segments from the 1918 influenza virus were found in both. We report the isolation of an H5N8 HPAIV strain from … 02-03-2021. WHO. Avian Influenza (AI) or "Bird Flu" is a highly contagious viral infection which can affect all species of birds and can manifest itself in different ways depending mainly on the ability of the virus to cause disease (pathogenicity) and … Russian authorities have reported the first known cases of an avian influenza virus called H5N8 passing from poultry to humans, according to news reports. The viruses are common amongst aquatic birds worldwide and domestic poultry including certain animal species are extremely susceptible to the virus. The H5N8 avian influenza virus is a highly contagious virus between poultry species. HPAI Asian H5N1 is especially deadly for poultry. Three H5N8 avian influenza viruses isolated from domestic geese in China in 2014 were characterized phylogenetically and biologically. While the highly contagious strain H5N8 is lethal for birds, it had never before been reported to have spread to humans. Microbiol. The strain is compatible with EA-H5N8. Avian influenza is the disease caused by infection from avian birds - Type A viruses. Similarly, an “H5N1” virus has a… In January 2014, H5N8 HPAIV caused outbreaks in South Korea and subsequently spread to East Asia, Europe, and North America. It was discovered for the first time in the world in 2014. Asian H5N1 was first detected in humans in 1997 during a poultry outbreak in Hong Kong and has since been detected in poultry and wild birds in more than 50 … In the wake of news reports that seven workers at a poultry farm in Russia are the first humans to be infected with the H5N8 strain of avian influenza, the International Poultry Council (IPC) believes it is important to reassure consumers that poultry meat is safe to eat.. Avian influenza is a known potential zoonotic … The strain is a subtype of the influenza A virus that causes flu-like symptoms in wild birds and poultry. The first confirmed outbreak of highly pathogenic avian influenza virus (HPAIV) in birds was documented in Scotland in 1959 with the influenza A H5N1 subtype, although there have been numerous suspected HPAIV outbreaks documented globally since 1878. For the first time, the H5N8 … While the highly contagious strain H5N8 is lethal for birds, it had never before been reported to have spread to humans. "Information about the world's first case of transmission of the avian flu (H5N8) to humans has already been sent to the World Health Organization," Popova said. In October 2020, highly pathogenic avian influenza A (H5N8) viruses were detected in 2 dead swans in Inner Mongolia, China. The cases were announced on Feb 20 by Anna Popova, who leads Russia's consumer health watchdog, according to … On October 27, 2016, public … These are known as novel influenza viruses and avian influenza viruses are one example. Situation: Highly pathogenic avian influenza virus (H5N1, H5N8 and H5N6 subtypes) with pandemic potential in countries of Sub-Saharan Africa since February 2017. There are different subtypes of avian influenza viruses. Asian highly pathogenic avian influenza (HPAI) A(H5N1) virus occurs mainly in birds and is highly contagious among them. ), as well as pet birds and wild birds. H5N8 is typically not associated with humans; however, seven people in Russia were found to be infected in 2021. Introduction France is one of Europe’s foremost poultry producers and the world’s fifth largest producer of poultry meat. Public health advice is that the risk to human health from the H5N8 virus strain is low and from the H5N2, H5N5 and H5N1 virus strains is very low. Back in November 2020, I wrote for Forbes about how an avian influenza strain, A (H5N8), was spreading among birds in Europe. Emerging H5N8 avian influenza viruses. … What is the H5N8 strain? In November 2016, highly pathogenic avian influenza (HPAI) virus subtype H5N8 emerged in poultry in the country. Avian influenza is an infectious viral disease in birds, including domestic poultry. - LPAI H5N8 assessment - 1) Influenza virus is a RNA virus Mutates 100,000 x as fast as a DNA virus (antigenic drift) Concern: could mutate from LPAI to HPAI 2) antigenic shift Quail (=swine) have human and avian receptors for Influenza virus Concern: could produce hybrid virus (antigenic shift) 3) premise history Latest avian flu outbreaks registered in France. They are now recovering, having suffered no serious health consequences. Russian authorities have reported 7 poultry farm workers aged 29 to 60 years infected with the A (H5N8) strain of avian influenza, also known as bird flu. The first … Yuhai Bi. This is precisely how the 1957 and 1968 pandemic flu viruses originated. Avian influenza is mainly found in birds, but under certain circumstances infections can also occur in humans even though the risk is generally very low. We report the identification of novel highly pathogenic avian influenza viruses of subtype H5N8, clade 2.3.4.4, and their reassortment with other avian influenza viruses in waterfowl and shorebirds of Siberia. Avian influenza A (H5N8) infects humans in Russian Federation. They tested the birds and sequenced the virus, determining that it was the H5N8 strain of avian flu, highly dangerous to both wild and domestic birds. 173, 249–257. Avian influenza A (H5N8) viruses have been rapidly spreading, most likely via wild migratory birds in Asia and Europe in recent months, and causing deaths in wild birds and outbreaks in domestic poultry. https://www.frontiersin.org/articles/10.3389/fvets.2018.00015 See also: Feb 28 OIE report on H5N8 in Hungary. China reports H5N8 avian flu outbreak in wild birds in Tibet. This discovery was considered an early warn-ing for the potential spread of the virus by autumn migration of wild birds. 2021 May 21;372(6544):784-786. doi: 10.1126/science.abg6302. Since the first HPAI cases linked to an H5N8 virus variant were detected in poultry the south-west of France in December, more than 446 outbreaks have been confirmed. Human cases infected with avian influenza A (e.g. (CNN) Russian authorities say they have detected what is believed to be "human infection with avian influenza H5N8," the World Health Organization (WHO) has confirmed to CNN. Seven workers at a poultry farm in southern Russia tested positive for this virus variant.
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