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Avian Flu Outbreaks in North America

Updated: Thursday, December 14, 2017 1:14 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).

South Korea Confirms Presence of H5N6 Bird Flu - IR INSIDER (blog)
13 Dec 2017 at 6:18pm
South Korea Confirms Presence of H5N6 Bird Flu - IR INSIDER (blog)
13 Dec 2017 at 6:18pm
UK bird flu threat remains low following Netherlands outbreak ... - FarmingUK
12 Dec 2017 at 7:43am
UK bird flu threat remains low following Netherlands outbreak ... - FarmingUK
12 Dec 2017 at 7:43am
Poultry growers should be on guard for bird flu - Herald-Mail Media
12 Dec 2017 at 5:06am
Poultry growers should be on guard for bird flu - Herald-Mail Media
12 Dec 2017 at 5:06am
How to spot bird flu, what to do if you suspect it and how to prevent it - FG...
12 Dec 2017 at 2:48am
How to spot bird flu, what to do if you suspect it and how to prevent it - FG...
12 Dec 2017 at 2:48am
S. Korea confirms highly pathogenic bird flu at duck farm - The Korea Herald
11 Dec 2017 at 7:19pm
S. Korea confirms highly pathogenic bird flu at duck farm - The Korea Herald
11 Dec 2017 at 7:19pm
S. Korea confirms new H5N6-strain bird flu at duck farm - The Mainichi
11 Dec 2017 at 5:43pm
S. Korea confirms new H5N6-strain bird flu at duck farm - The Mainichi
11 Dec 2017 at 5:43pm
Netherlands confirms highly pathogenic bird flu outbreak: OIE - Reuters
11 Dec 2017 at 11:04am
Netherlands confirms highly pathogenic bird flu outbreak: OIE - Reuters
11 Dec 2017 at 11:04am
Netherlands confirms highly pathogenic bird flu outbreak - OIE - Channel News...
11 Dec 2017 at 10:35am
Netherlands confirms highly pathogenic bird flu outbreak - OIE - Channel News...
11 Dec 2017 at 10:35am
S. Korea culls 76000 ducks after confirming bird flu outbreak - The Malaysian...
11 Dec 2017 at 2:38am
S. Korea culls 76000 ducks after confirming bird flu outbreak - The Malaysian...
11 Dec 2017 at 2:38am
Fight to contain bird flu outbreak - Khmer Times - Khmer Times
10 Dec 2017 at 5:51pm
Fight to contain bird flu outbreak - Khmer Times - Khmer Times
10 Dec 2017 at 5:51pm
Housed free-range period extended as bird flu warnings continue ... - Agriland
10 Dec 2017 at 4:02am
Housed free-range period extended as bird flu warnings continue ... - Agriland
10 Dec 2017 at 4:02am
Bird flu outbreak in Kampong Cham - Khmer Times
9 Dec 2017 at 4:26am
Bird flu outbreak in Kampong Cham - Khmer Times
9 Dec 2017 at 4:26am
Bird flu returns in Cambodia - Bangkok Post
9 Dec 2017 at 3:48am
Bird flu returns in Cambodia - Bangkok Post
9 Dec 2017 at 3:48am
Bird flu drives up egg prices | Daily News - IOL - Independent Online
8 Dec 2017 at 1:03pm
Bird flu drives up egg prices | Daily News - IOL - Independent Online
8 Dec 2017 at 1:03pm
Bird flu: Dutch farmers ordered to keep poultry indoors | The Seattle ... - S...
8 Dec 2017 at 6:54am
Bird flu: Dutch farmers ordered to keep poultry indoors | The Seattle ... - S...
8 Dec 2017 at 6:54am
Egg prices to jump up to 20% over bird flu | Fin24 - Fin24
8 Dec 2017 at 4:04am
Egg prices to jump up to 20% over bird flu | Fin24 - Fin24
8 Dec 2017 at 4:04am
No new bird flu cases in the Cape - EWN - Eyewitness News
7 Dec 2017 at 10:54pm
No new bird flu cases in the Cape - EWN - Eyewitness News
7 Dec 2017 at 10:54pm
Bird flu controlled, but vigilance needed - Business Day
7 Dec 2017 at 9:12pm
Bird flu controlled, but vigilance needed - Business Day
7 Dec 2017 at 9:12pm
AU tackles bird flu - The Punch
5 Dec 2017 at 4:04pm
AU tackles bird flu - The Punch
5 Dec 2017 at 4:04pm
P7.7M from China to boost Pampanga's anti-bird flu program | SunStar - Sun.Star
5 Dec 2017 at 5:25am
P7.7M from China to boost Pampanga's anti-bird flu program | SunStar - Sun.Star
5 Dec 2017 at 5:25am