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{{Avian influenza}}
{{Avian influenza}}
'''For patient information, click [[{{PAGENAME}} (patient information)|here]]'''
<br>'''For more information about seasonal human influenza virus that is not associated with animal exposure, see [[Influenza]]'''<br><br>


'''For patient information click [[{{PAGENAME}} (patient information)|here]]'''
{{CMG}}
 
{{SK}} Bird flu; avian flu, Bird influenza, Avian influenza virus; Bird flu virus; Bird influenza virus; Zoonotic influenza; Variant influenza
 
==[[Avian influenza overview|Overview]]==


{{CMG}}
==[[Avian influenza historical perspective|Historical Perspective]]==


==[[Avian influenza classification|Classification]]==


==[[Avian influenza pathophysiology|Pathophysiology]]==


==H5N1==
==[[Avian influenza causes|Causes]]==
{{H5N1}}
{{details more|H5N1|Transmission and infection of H5N1}}
The highly pathogenic Influenza A virus subtype [[H5N1]] virus is an emerging avian influenza virus that has been causing global concern as a potential [[pandemic]] threat. It is often referred to simply as "bird flu" or "avian influenza" even though it is only one subtype of avian influenza causing virus.


H5N1 has killed millions of poultry in a growing number of countries throughout Asia, Europe and Africa. Health experts are concerned that the co-existence of human flu viruses and avian flu viruses (especially H5N1) will provide an opportunity for genetic material to be exchanged between species-specific viruses, possibly creating a new virulent influenza strain that is easily transmissible and lethal to humans.<ref name=FSRIO>Food Safety Research Information Office. [http://fsrio.nal.usda.gov/document_fsheet.php?product_id=207 "A Focus on Avian Influenza"]. Created May 2006, Updated November 2007.</ref>
==[[Avian influenza differential diagnosis|Differentiating Avian influenza from other Diseases]]==


Since the first H5N1 outbreak occurred in 1997, there has been an increasing number of HPAI H5N1 bird-to-human transmissions leading to clinically severe and fatal human infections. However, because there is a significant species barrier that exists between birds and humans, the virus does not easily cross over to humans, though some cases of infection are being researched to discern whether human to human transmission is occurring.<ref name=Blanchard/> More research is necessary to understand the pathogenesis and epidemiology of the H5N1 virus in humans. Exposure routes and other disease transmission characteristics such as genetic and immunological factors, that may increase the likelihood of infection, are not clearly understood. <ref name=WHO>World Health Organization. (2006). [http://www.who.int/mediacentre/factsheets/avian_influenza/en/#humans Avian influenza (" bird flu") – The Disease in Humans.] Retrieved April 6, 2006.</ref>
==[[Avian influenza epidemiology and demographics|Epidemiology and Demographics]]==


Although millions of birds have become infected with the virus since its discovery, 206 humans have died from the H5N1 in twelve countries according to [[WHO]] data as of November 2007.
==[[Avian influenza risk factors|Risk Factors]]==
(View the most current WHO Data regarding [http://www.who.int/csr/disease/avian_influenza/country/en/ Cumulative Number of Human Cases].)


The Avian Flu claimed at least 200 humans in Romania, Greece, Turkey and Russia. Epidemioloigists are afraid that the next time such a virus mutates, it could pass from human to human. If this form of transmission occurs, another big pandemic could result. However, disease-control centers around the world are making avian flu their top priority.
==[[Avian influenza natural history, complications and prognosis|Natural History, Complications and Prognosis]]==


==Related Chapters==
==Diagnosis==
*[[H5N1]]
*[[Global spread of H5N1]]
*[[Transmission and infection of H5N1]]
*[[:Category:Subtypes of Influenza A virus|Subtypes of Influenza A virus]]
*[[Influenzavirus A]]
*[[Influenza pandemic]]
*[[Influenza Genome Sequencing Project]]
*[[Influenza research]]
*[[Influenza vaccine]]
*[[OIE/FAO Network of Expertise on Avian Influenza]]
*[[International Partnership on Avian and Pandemic Influenza]]
*[[Pandemic Preparedness and Response Act]]


==References==
[[Avian influenza history and symptoms|History and Symptoms]] | [[Avian influenza physical examination|Physical Examination]] | [[Avian influenza laboratory findings|Laboratory Findings]] | [[Avian influenza chest x ray|Chest X Ray]] | [[Avian influenza other imaging findings|Other Imaging Findings]] | [[Avian influenza other diagnostic studies|Other Diagnostic Studies]]
{{reflist|2}}


==External links==
==Treatment==
;International
;;World Health Organisation (WHO)
;*[http://www.who.int/csr/disease/avian_influenza/en/ WHO Avian influenza resource (updated)]
;*[http://www.who.int/csr/disease/avian_influenza/avianinfluenza_factsheetJan2006/en/index.html The United Nation's World Health Organization's Avian Flu Facts Sheet for 2006]
;;Food and Agriculture Organization of the UN (FAO)
;*[http://www.fao.org/ag/avian.html FAO Avian Influenza portal] Information resources, animations, videos, photos
;*[http://www.fao.org/ag/againfo/subjects/en/health/diseases-cards/avian.html FAO Bird Flu disease card]
;;World Organisation for Animal Health (OIE)
;*[http://www.oie.int/downld/AVIAN%20INFLUENZA/A_AI-Asia.htm Official outbreak reports by country]
;*[http://www.oie.int/eng/info/hebdo/a_isum.htm Official outbreak reports by week]


;United States
[[Avian influenza medical therapy|Medical Therapy]] | [[Avian influenza primary prevention|Primary Prevention]] | [[Avian influenza secondary prevention|Secondary Prevention]] | [[Avian influenza cost-effectiveness of therapy|Cost-Effectiveness of Therapy]] | [[Avian influenza future or investigational therapies|Future or Investigational Therapies]]
*[http://www.pandemicflu.gov PandemicFlu.Gov] U.S. Government avian and pandemic flu information
*[http://www.usaid.gov/our_work/global_health/home/News/news_items/avian_influenza.html US Avian Influenza Response] U.S. Agency for International Development (USAID)


;Europe
==Case Studies==
*[http://library.wur.nl/frontis/avian_influenza/ Avian Influenza: Prevention and Control] Proceedings of the Frontis workshop on Avian Influenza: Prevention and Control, Wageningen, The Netherlands
[[Avian influenza case study one|Case #1]]


;Other
==Related Chapters==
*[http://www.fluwikie.com/ Flu Wiki]
*[[H5N1]]
*[http://www.flupandemicalert.com Bird Flu Pandemic Alert and Breaking News]
*Global Spread of H5N1
*[http://declanbutler.info/blog/?p=58 The spread of avian flu with time; new maps exploiting Google Earth’s time series function] updated Google Earth maps of bird flu spread by [[Nature (journal)|Nature]] reporter Declan Butler
*[[Transmission and infection of H5N1|Transmission and Infection of H5N1]]
*[http://www.birdfluthreat.org/essentials/main_info.php birdfluthreat.org information page]
*[[:Category:Subtypes of Influenza A virus|Subtypes of Influenza A virus]]
*[[Influenzavirus A|Influenza Virus A]]
*[[Influenza pandemic|Influenza Pandemic]]
*Influenza Genome Sequencing Project
*[[Influenza vaccine|Influenza Vaccine]]
*OIE/FAO Network of Expertise on Avian Influenza
*International Partnership on Avian and Pandemic Influenza
*[[Pandemic Preparedness and Response Act]]


==External Links==
*[http://www.who.int/csr/disease/avian_influenza/en/ WHO Avian influenza resource (updated)]


{{Viral diseases}}
{{Viral diseases}}
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[[Category:Bird diseases]]
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[[Category:Avian influenza]]
[[Category:Avian influenza]]
[[Category:Infectious disease]]
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[[Category:Animal virology]]
[[Category:Microbiology]]
[[Category:Poultry diseases]]
[[Category:Emergency medicine]]
[[Category:Pulmonology]]
[[Category:Disease]]
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Latest revision as of 17:04, 18 September 2017

Avian influenza Microchapters

Home

Patient Information

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Avian influenza from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms

Physical Examination

Laboratory Findings

Chest X Ray

Other Diagnostic Studies

Treatment

Medical Therapy

Primary Prevention

Secondary Prevention

Cost-Effectiveness of Therapy

Future or Investigational Therapies

Case Studies

Case #1

Avian influenza On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Avian influenza

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X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Avian influenza

CDC on Avian influenza

Avian influenza in the news

Blogs on Avian influenza

Directions to Hospitals Treating Avian influenza

Risk calculators and risk factors for Avian influenza

For patient information, click here
For more information about seasonal human influenza virus that is not associated with animal exposure, see Influenza

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Synonyms and keywords: Bird flu; avian flu, Bird influenza, Avian influenza virus; Bird flu virus; Bird influenza virus; Zoonotic influenza; Variant influenza

Overview

Historical Perspective

Classification

Pathophysiology

Causes

Differentiating Avian influenza from other Diseases

Epidemiology and Demographics

Risk Factors

Natural History, Complications and Prognosis

Diagnosis

History and Symptoms | Physical Examination | Laboratory Findings | Chest X Ray | Other Imaging Findings | Other Diagnostic Studies

Treatment

Medical Therapy | Primary Prevention | Secondary Prevention | Cost-Effectiveness of Therapy | Future or Investigational Therapies

Case Studies

Case #1

Related Chapters

External Links

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