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Topic: Avian influenza


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In the News (Mon 17 Jun 19)

  
  Avian influenza: Just the facts...   (Site not responding. Last check: 2007-11-07)
Avian influenza (also known as bird flu) is a type of influenza (An acute febrile highly contagious viral disease) virulent (additional info and facts about virulent) in bird (Warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings) s.
The first cases of avian influenza passed from birds to humans was H5N1 in 1997 in Hong Kong (Formerly a Crown Colony on the coast of southern China in Guangdong province; leased by China to Britain in 1842 and returned in 1997; one of the world's leading commercial centers).
In February 2004, avian influenza virus was detected in pigs in Vietnam, increasing fears of the emergence of new variant strains.
www.absoluteastronomy.com /encyclopedia/a/av/avian_influenza.htm   (1272 words)

  
 Avian influenza - Wikipedia, the free encyclopedia
Avian influenza (also known as bird flu, avian flu, influenzavirus A flu, type A flu, or genus A flu) is a flu due to a type of influenza virus that is hosted by birds, but may infect several species of mammals.
Avian influenza viruses compose the Influenzavirus A genus of the Orthomyxoviridae family and are negative sense, single-stranded, segmented RNA viruses.
All avian influenza (AI) viruses are type A influenzavirus in the virus family of Orthomyxoviridae and all known strains of influenza A virus infect birds.
en.wikipedia.org /wiki/bird_flu   (2150 words)

  
 WHO: Avian influenza - fact sheet   (Site not responding. Last check: 2007-11-07)
Avian influenza is an infectious disease of birds caused by type A strains of the influenza virus.
The tendency of influenza viruses to undergo frequent and permanent antigenic changes necessitates constant monitoring of the global influenza situation and annual adjustments in the composition of influenza vaccines.
When cases of avian influenza in humans occur, information on the extent of influenza infection in animals as well as humans and on circulating influenza viruses is urgently needed to aid the assessment of risks to public health and to guide the best protective measures.
www.who.int /csr/don/2004_01_15/en   (2036 words)

  
 Encyclopedia: Avian influenza   (Site not responding. Last check: 2007-11-07)
Avian influenza is a highly contagious viral disease affecting the respiratory, digestive and/or nervous system of many species of birds.
The Avian Influenza and Newcastle Disease (England and Wales) Order 2003 which extends to these two diseases new powers introduced by the Animal Health Act 2002, allowing a preventative or firebreak cull of poultry, providing powers of entry to test and sample, and allowing the slaughter of vaccinated poultry, with compensation.
In 1991 avian influenza was confirmed in a flock of turkeys in Norfolk.
www.nationmaster.com /encyclopedia/Avian-influenza   (815 words)

  
 Avian Flu Guidance
The avian influenza strain found in Delaware was (H7N2), in Pennsylvania the strain was (H2N2), and the (H5N2) strain was found in Texas.
Influenza is a category of viruses associated with acute (short), usually self-limited infections, whose symptoms are most commonly fever, muscle pain or aches, and cough.
Avian influenza is a highly contagious disease of birds which is currently epidemic amongst poultry in Asia.
www.osha.gov /dsg/guidance/avian-flu.html   (3031 words)

  
 Avian Influenza Fact Sheet, UC Davis Veterinary Medicine Extension   (Site not responding. Last check: 2007-11-07)
Avian influenza viruses are spread to susceptible birds through inhalation of influenza particles in nasal and respiratory secretions and from contact with the feces of infected birds.
Avian influenza can be spread from infected birds through the transfer of feces especially on contaminated equipment and clothing.
Avian influenza virus infections are widespread in wild birds, especially ducks.
www.vetmed.ucdavis.edu /vetext/INF-PO_AvianInfluenzaFS.html   (871 words)

  
 Avian Influenza in Poultry
Avian influenza viruses of low to moderate pathogenicity are identified regularly in the United States in the domestic poultry populations.
Avian influenza virus is reintroduced into domestic poultry by migratory waterfowl, which are carriers of the influenza virus.
Avian influenza may be confused with infectious bronchitis, infectious laryngotracheitis, fowl cholera, and the various forms of Newcastle disease.
edis.ifas.ufl.edu /PS032   (1839 words)

  
 Frequently asked questions about Avian Influenza or Bird flu   (Site not responding. Last check: 2007-11-07)
Avian influenza has been in Australia in the past and was successfully eradicated from poultry.
Australians intending to travel to avian influenza affected areas for short periods are at much lower risk of infection but should discuss the risk of avian influenza with their doctor as part of their routine pre-travel health checks.
If you are intending to travel to avian influenza affected areas for short periods you are at much lower risk of infection but you should discuss the risk of avian influenza as part of your  routine pre-travel health checks.
www.health.gov.au /avian_influenza/faq.htm   (2051 words)

  
 Avian influenza - Wikipedia, the free encyclopedia
Strains of avian influenzavirus may infect various type of animals, including birds, pigs, horses, seals, whales and humans.
Avian influenzavirus H5 and H7 strains are found in both "low pathogenic” or “high pathogenic” forms; influenza H9 virus has been identified only in a “low pathogenic” form.
Although avian influenzavirus in humans can be detected with standard influenza virus tests, these tests have not always proved reliable.
en.wikipedia.org /wiki/Avian_influenza   (2150 words)

  
 Canadian Food Inspection Agency - Animal Health - Fact Sheet - Avian Influenza   (Site not responding. Last check: 2007-11-07)
Avian influenza (AI) is a contagious viral infection caused by the influenza virus Type "A", which can affect several species of food producing birds (chickens, turkeys, quails, guinea fowl, etc.), as well as pet birds and wild birds.
Diagnosis of avian influenza may be made on the basis of clinical signs and events leading to the disease.
The CFIA depopulated all infected premises (42 commercial and 11 backyard premises) on which highly pathogenic avian influenza was found and pre-emptively destroyed all birds in the surrounding three kilometre areas.
www.inspection.gc.ca /english/anima/heasan/disemala/avflu/avflufse.shtml   (1210 words)

  
 EUROPA - Animal Health & Welfare - Animal Diseases - Avian Influenza - Introduction
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 pathogenicity of the virus involved and on the species affected.
After the report of an outbreak of High Pathogenic Avian Influenza in the Republic of Korea (South Korea) in December 2003, several outbreaks of avian influenza were reported in many countries of Asia, North America and South Africa during 2004 and 2005.
Avian Influenza — Response to outbreaks in third countries in 2004/2005- PART I : 12 December 2003 to 31 August 2005 (including Asia, North America, South Africa and Russia)— Chronology of main events and list of Decisions adopted by the European Commission.
europa.eu.int /comm/food/animal/diseases/controlmeasures/avian/index_en.htm   (1197 words)

  
 A review of avian influenza
Only type A influenza viruses are known to cause natural infections of birds, but viruses of all 15 HA and all 9 NA influenza A subtypes in the majority of possible combinations have been isolated from avian species.
Influenza A viruses infecting poultry can be divided into two distinct groups on the basis of their ability to cause disease.
The HA0 precursor proteins of avian influenza viruses of low virulence for poultry have a single arginine at the cleavage site and are limited to cleavage by host proteases such as trypsin-like enzymes and thus restricted to replication at sites in the host where such enzymes are found, i.e.
www.esvv.unizh.ch /gent_abstracts/Alexander.html   (1252 words)

  
 AVIAN INFLUENZA   (Site not responding. Last check: 2007-11-07)
Avian influenza (AI) is a disease of viral etiology that ranges from a mild or even asymptomatic infection to an acute, fatal disease of chickens, turkeys, guinea fowls, and other avian species, especially migratory waterfowl (1,2,3,4,8,9,10,11).
The presence of facial edema, swollen and cyanotic combs and wattles, and petechial hemorrhages on internal membrane surfaces increases the likelihood that the disease is HPAI.
An influenza virus isolated from harbor seals that died of pneumonia had the HA and NA surface antigens of an influenza virus isolated from turkeys a decade earlier.
www.vet.uga.edu /vpp/gray_book/FAD/AVI.htm   (2928 words)

  
 Influenza A (H5N1) Bird Flu (Avian Flu) - Vads Corner
Characterization of avian H5N1 influenza viruses from poultry in Hong Kong.
Avian influenza A viruses differ from human viruses by recognition of sialyloligosaccharides and gangliosides and by a higher conservation of the HA receptor-binding site.Matrosovich MN, et.al.
Genetic reassortment in pandemic and interpandemic influenza viruses.
www.vadscorner.com /h5n1.html   (1469 words)

  
 NIAID Announces Contracts to Develop Vaccine Against H5N1 Avian Influenza   (Site not responding. Last check: 2007-11-07)
If a pandemic of H5N1 avian influenza were to occur in humans, production of such a vaccine on a commercial scale could be used to protect laboratory workers, public health personnel at risk and, if needed, the general public.
Influenza is an important disease that causes significant death and disability in the United States every year.
Likewise, the outbreak of H5N1 avian influenza in humans in late 2003 and early 2004 did not result in a pandemic in part because it also did not spread easily from person to person.
www2.niaid.nih.gov /Newsroom/Releases/flucontracts.htm   (652 words)

  
 EUROPA - Public Health - Threats to health - Communicable diseases - Surveillance - Influenza - Avian Influenza
Influenza viruses are classified as types A, B and C and they are found in a very large number of different species of birds and mammals, including humans.
Avian influenza viruses able to infect humans and to spread easily from person to person may cause an ‘influenza pandemic’.
However, the large epidemics of highly pathogenic avian influenza currently seen in poultry in Asia, and possible widespread presence of the virus in the environment, increase opportunities for human exposure and infection.
europa.eu.int /comm/health/ph_threats/com/Influenza/avian_influenza_en.htm   (490 words)

  
 APHIS | News
Worldwide, there are many strains of avian influenza (AI) virus that can cause varying amounts of clinical illness in poultry.
For this reason, poultry personnel and avian health care specialists should wear adequate personal protective equipment, such as boots, coveralls, gloves, face masks, and headgear, and follow appropriate sanitary and disinfectant procedures when on premises known or suspected to be infected with HPAI.
Avian influenza viruses can be introduced into these markets if they receive infected birds or contaminated crates and trucks.
www.aphis.usda.gov /lpa/pubs/fsheet_faq_notice/fs_ahavianflu.html   (1512 words)

  
 Avian Influenza - Home Page
Avian influenza is a viral infection that affects most species of birds.
Outbreaks of avian influenza in the poultry industry cause devastating economic losses.
Control of avian influenza is through extensive culling of infected and in contact poultry, a stamping out policy.
www.avian-influenza.com   (136 words)

  
 Prevention of Avian Influenza   (Site not responding. Last check: 2007-11-07)
Avian flu (H5N1) is a type of influenza A that mainly infects birds but occasionally affects humans.
Avian flu can be transmitted from live birds to people, although transmission between humans is very inefficient.
The initial symptoms of avian flu are similar to those of other influenza viruses, including fever, generalised muscle pain, cough and sore throat.
www.info.gov.hk /info/flu/eng   (124 words)

  
 CIDRAP >> Avian Influenza
Quantification of the effect of vaccination on transmission of avian influenza (H7N7) in chickens
New genotype of avian influenza H5N1 viruses isolated from tree sparrows in China
Avian influenza and the pandemic threat: risk assessment for Africa
www.cidrap.umn.edu /cidrap/content/hot/avianflu/index.html   (648 words)

  
 Winged Wisdom Pet Bird Magazine - Zoonotic (Bird-Human) Diseases: Giardia and Avian Influenza
Giardia from mammals may infect humans, but the zoonotic potential for avian giardiasis is believed to be low, since it is not thought that avian giardia can infect mammals.
Influenza is caused by an enveloped RNA virus.
Influenza viruses are continuously undergoing change, resulting in new serotypes.
www.birdsnways.com /wisdom/ww26eiv.htm   (985 words)

  
 avian influenza on Encyclopedia.com   (Site not responding. Last check: 2007-11-07)
Lack of evidence for human-to-human transmission of avian influenza A (H9N2) viruses in Hong Kong, China, 1999 (1).
Avian Influenza Hits US Poultry Industry; Antec International Launches Emergency Disease Control 'Selected By the Experts' Campaign.
EU continues to ease restrictions on avian influenza.
www.encyclopedia.com /html/X/X-avninflnz.asp   (448 words)

  
 ASK THE VET (Avian influenza)
The "flu" (influenza) season is rapidly approaching and so it seems appropriate to talk about avian influenza.
The influenza virus undergoes constant mutation or changes, which is why a large number of people, mammals and birds are always susceptible to infection.
Although vaccines have been developed for influenza A in domestic fowl, there are of limited value because the virus is undergoing constant change.
theaviary.com /s0196-13.shtml   (379 words)

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