Indoneisa i struggling to contain the bird flu, and it is beginning to expand again. Indonesia now ranks as the country with the most deaths from the bird flu, and people are starting to become nervous about the bird flu.
Can Indonesia figure out how to contain it or are they about out of time with the bird flu before a huge global pandemic starts in Indonesia?
In the isolated mountain community of Dairi in north Sumatra, about 200 villagers file into a packed meeting house. Everybody is talking about a frightening rumor that (more…)
Infant Bird Flu DeathBird Flu Another Death in Indonesia
Bird Flu TERMINOLOGY
Avian influenza *bird flu)(AI)–the bird flu–is a virus that infects wild birds (such as ducks, gulls, and shorebirds) and domestic poultry (such as chickens, turkeys, ducks, and geese). There is flu for birds just as there is for humans and, as with people, some forms of the flu in birds are worse than others.
AI viruses are classified by a combination of two groups of proteins: the hemagglutinin or H proteins, of which there are 16 (H1-H16), and neuraminidase or N proteins, of which there are 9 (N1-N9).
Pathogenicity of Bird Flu: the ability of the bird flu virus to produce disease. AI strains also are divided into two groups based upon the ability of the virus to produce disease: low pathogenic (LP) and highly pathogenic (HP).
Low Pathogenic or “low path” avian influenza (bird flu) (LPAI): LPAI occurs naturally in wild birds and can spread to domestic birds. In most cases it causes no signs of infection or only minor symptoms in birds. These strains of the disease pose little significant threat to human health. These strains are common in the U.S. and around the world.
Highly Pathogenic or “high path” avian influenza (HPAI): HPAI is often fatal in chickens and turkeys. HPAI spreads rapidly and has a high death rate in birds than LPAI. HPAI has been detected and eradicated three times in U.S. domestic poultry. HPAI H5N1 is the subtype rapidly spreading in some parts of the world.
Tags: avian flu, H5N1, pandemic, avian influenza, avian fluBird Flu Pandemic
USDA: Fact Sheet - Avian Influenza UpdatedUSDA: Fact Sheet - Avian Influenza Updated Part 2
Bird Flu Fact Sheet Part 2
2002 - LPAI H5N1 antibodies were detected in turkeys in Michigan but the virus could not be isolated; therefore this detection could not be confirmed.
2005 - LPAI H5N1 was detected in ducks in Manitoba, Canada.
2006 - LPAI H5N1 was confirmed in two Michigan mute swans sampled as part of USDA’s expanded avian influenza surveillance.
In the past, there was no requirement for reporting or tracking LPAI H5 or H7 detections in wild birds so states and universities tested wild bird samples independently of USDA. Because of this, the above list of previous detections might not be all inclusive of past LPAI H5N1 detections. However, the World Organization for Animal Health (OIE) recently changed its requirement of reporting detections of avian influenza. Effective in 2006, all confirmed LPAI H5 and H7 AI subtypes must be reported to the OIE because of their potential to mutate into highly pathogenic strains. Therefore, USDA now tracks these detections in wild birds, backyard flocks, commercial flocks and live bird markets.
HPAI H5N1 (”Asian” H5N1) (more…)
USDA: Fact Sheet - Avian Influenza UpdatedUSDA: Fact Sheet - Avian Influenza Updated Part 3
USDA: Fact Sheet - Avian Influenza Updated
There are two types of avian influenza (AI) that are identified as H5N1. A difference exists in the virus classification; one is low pathogenic (LPAI) and the other is highly pathogenic (HPAI). Pathogenicity refers to the ability of the virus to produce disease.
HPAI H5N1, often referred to as the “Asian” H5N1, is the type causing worldwide concern. LPAI H5N1, often referred to as the “North American” H5N1, is of less concern. Following is an explanation of the differences between them.
LPAI H5N1 (”North American” H5N1)
LPAI, or “low path” AI, commonly occurs in wild birds. In most cases, it causes minor sickness or no noticeable signs of disease. It is rarely fatal in birds. LPAI strains are not a human health concern. This includes LPAI H5N1.
Evidence of LPAI H5N1 has been found in wild birds in the United States in recent years and is not closely related to the more severe HPAI H5N1 circulating overseas. Examples of historical reports of LPAI H5N1 received by USDA include:
1975 - LPAI H5N1 was detected in a wild mallard duck and a wild blue goose in Wisconsin as part of routine sampling, not as a result of noticeable illness in the birds (more…)
USDA: Fact Sheet - Avian Influenza Updated Part 2USDA: Fact Sheet - Avian Influenza Updated Part 3
The deadly H5N1 strain of bird flu continues to spread throughout Asia, Africa and Europe, threatening people, animals and economies, the United Nations Food and Agriculture Organisation (FAO) warned on Monday.
According to World Health Organisation figures, 239 people have been infected with the virulent H5N1 strain of the virus since 2003 and 140 have died, mostly in Asian nations.
More than 220-million birds have died from the virus or been culled in a bid to limit contamination.
The FAO said the southern Balkan area and the Caucasus region were at –>high risk
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Scientists have discovered the possible presence of bird flu in wild mute swans in Michigan - but it does not appear to be the worrisome, highly pathogenic strain, the White House announced Monday.
“They believe it is a strain of low pathogenicity, similar to strains that have been seen before in North America,” White House spokesman Tony Snow said.
Testing is still being done to confirm the presence of the virus and its type, officials said.
Tags: bird flu, white house, bird flu in Unisted States
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