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Avian Flu Outbreaks in North America

Updated: Tuesday, October 23, 2018 11:24 AM EDT
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Avian Flu Outbreaks in North America

Recent North American Outbreaks of Avian Influenza with Transmission to Humans

H7N3 in Canada – 2004

On February 19, 2004 , the Canadian Food Inspection Agency announced an outbreak of avian influenza A (H7N3) in poultry in the Fraser Valley region of British Columbia . Culling operations and other measures were performed in an effort to control the spread of the virus. Health Canada reported two cases of laboratory-confirmed influenza A (H7): one in a person involved in culling operations on March 13-14, and the other in a poultry worker who had close contact with poultry on March 22-23. Both patients developed conjunctivitis (eye infection) and other flu-like symptoms. Their illnesses resolved after treatment with the antiviral medication oseltamivir.

Although these are the only laboratory-confirmed cases of avian influenza A (H7) in humans during this outbreak in Canada , approximately 10 other poultry workers exhibited conjunctival and/or upper respiratory symptoms after having contact with poultry. Use of personal protective equipment is mandatory for all persons involved in culling activities, and compliance with prescribed safety measures is monitored. Epidemiologic, laboratory, and clinical evaluation is ongoing, as is surveillance for signs of avian influenza in exposed persons. There is currently no evidence of person-to-person transmission of avian influenza from this outbreak.

H7N2 in New York – 2003

In November 2003, a patient with serious underlying medical conditions was admitted to a hospital in New York with respiratory symptoms. One of the initial laboratory tests identified an influenza A virus that was thought to be H1N1. The patient recovered and went home after a few weeks. Subsequent confirmatory tests conducted in March showed that the patient had been infected with an H7N2 avian influenza A virus.

Recent Outbreaks among Poultry in the United States with No Transmission to Humans

H5N2 in Texas – 2004

In February 2004, an outbreak of highly pathogenic avian influenza (HPAI) A (H5N2) was detected and reported in a flock of 7,000 chickens in south-central Texas . This was the first outbreak of HPAI in the United States in 20 years.

H7N2 in Delaware, New Jersey, and Maryland – 2004

In February 2004, an outbreak of low pathogenic avian influena (LPAI) A (H7N2) was reported on 2 chicken farms in Delaware and in four live bird markets in New Jersey supplied by the farms. In March 2004, surveillance samples from a flock of chickens in Maryland tested positive for LPAI H7N2. It is likely that this was the same strain.

This article is based on information gathered at the CDC (Center For Disease Control).

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23 Oct 2018 at 10:17am
Mild form of bird flu found in Minnesota turkey flock - DesMoinesRegister.com
23 Oct 2018 at 10:17am
Mild form of bird flu found in Minnesota turkey flock - KWWL - kwwl.com
23 Oct 2018 at 8:57am
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23 Oct 2018 at 8:57am
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23 Oct 2018 at 1:10am
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23 Oct 2018 at 1:10am
Korea strengthens bird flu quarantine efforts ahead of winter - The Korea Herald
22 Oct 2018 at 7:06pm
Korea strengthens bird flu quarantine efforts ahead of winter - The Korea Herald
22 Oct 2018 at 7:06pm
S. Korea strengthens bird flu quarantine efforts ahead of winter - Yonhap News
22 Oct 2018 at 7:02pm
S. Korea strengthens bird flu quarantine efforts ahead of winter - Yonhap News
22 Oct 2018 at 7:02pm
Bulgaria reports bird flu outbreak on two farms in south of the country - Ukr...
20 Oct 2018 at 8:45am
Bulgaria reports bird flu outbreak on two farms in south of the country - Ukr...
20 Oct 2018 at 8:45am
Bird flu outbreak reported in Bulgaria - Xinhua
19 Oct 2018 at 7:04am
Bird flu outbreak reported in Bulgaria - Xinhua
19 Oct 2018 at 7:04am
Bulgaria reports bird flu outbreak on two farms - Independent.ie
18 Oct 2018 at 10:09pm
Bulgaria reports bird flu outbreak on two farms - Independent.ie
18 Oct 2018 at 10:09pm
French foie gras makers say they are ready if bird flu returns - Reuters
18 Oct 2018 at 9:33am
French foie gras makers say they are ready if bird flu returns - Reuters
18 Oct 2018 at 9:33am
Bulgaria reports bird flu outbreak on two farms in south - Reuters
18 Oct 2018 at 8:32am
Bulgaria reports bird flu outbreak on two farms in south - Reuters
18 Oct 2018 at 8:32am
VN reports no new cases of bird flu in humans since 2014 - Viet Nam News
17 Oct 2018 at 1:00am
VN reports no new cases of bird flu in humans since 2014 - Viet Nam News
17 Oct 2018 at 1:00am
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16 Oct 2018 at 5:52am
Over 760 billion VND for bird flu control during 2019-2025 - http://en.vietna...
16 Oct 2018 at 5:52am
Egypt to bar live poultry trade over bird flu fears - Egypt Independent
11 Oct 2018 at 7:29am
Egypt to bar live poultry trade over bird flu fears - Egypt Independent
11 Oct 2018 at 7:29am
China reports new H5N6 bird flu outbreak in Hunan province - Channel NewsAsia
9 Oct 2018 at 3:46am
China reports new H5N6 bird flu outbreak in Hunan province - Channel NewsAsia
9 Oct 2018 at 3:46am
Bird flu detected at poultry farm in southern Bulgaria - Reuters
5 Oct 2018 at 1:49am
Bird flu detected at poultry farm in southern Bulgaria - Reuters
5 Oct 2018 at 1:49am
China reports H5N6 bird flu case on poultry farm in Guizhou province - Reuters
29 Sep 2018 at 3:16am
China reports H5N6 bird flu case on poultry farm in Guizhou province - Reuters
29 Sep 2018 at 3:16am
After chicken, bird flu virus emerges in ducks in China - Medibulletin
28 Sep 2018 at 6:41am
After chicken, bird flu virus emerges in ducks in China - Medibulletin
28 Sep 2018 at 6:41am
Bird flu switches from chickens to ducks - Cosmos
27 Sep 2018 at 8:00am
Bird flu switches from chickens to ducks - Cosmos
27 Sep 2018 at 8:00am
Thailand considers jail for feeding pigeons to eliminate bird flu risk - Time...
26 Sep 2018 at 6:19am
Thailand considers jail for feeding pigeons to eliminate bird flu risk - Time...
26 Sep 2018 at 6:19am
Bird Flu Threatens Innscor Profits - pindula.co.zw
24 Sep 2018 at 1:41pm
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