Where Did Bird Flu Come From

Can someone be at fault. The virus that caused the 1918 influenza pandemic probably sprang from North American domestic and wild birds not from the mixing of human and swine viruses.

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While some researchers have pointed to a military camp in Kansas or the front-line trenches in France as the breeding ground for the disease a Canadian historian believes he has discovered.

Where did bird flu come from. The first infection occurred in Hong Kong in 1997. Currently a particularly deadly strain of bird flu -- H5N1 -- continues to spread among poultry in Egypt and in certain. But every so often direct descendants of the 1918 flu combined with bird flu or swine flu to create powerful new pandemic strains which is exactly what happened in 1957 1968 and 2009.

Coronavirus Sara and bird flu have all come from China they have killed thousands of people and cost the world billions of pounds I feel we need to hold the Chinese responsible and demand. The first case of the novel avian influenza A H7N9 virus was identified on March 30 2013. The bird flus origin story began in China back in 1996 when the disease was initially detected among geese according to the CDC and it was proven to be incredibly contagious and fatal.

High pathogenicity HP or low pathogenicity LP. The outbreak was linked to handling infected poultry. Genetic sequencing shows that from 2000 to 2010 87 percent of the most successful globally-spreading strains of H3N2 originated in east south and southeast Asia.

It seemed to affect migrant aquatic birds more than others but it appeared to be affecting livestock as well. Scientists have been working to track changes to the new flu virus including its history. As a result swine influenza viruses with genes from humans North American pigs and birds have existed in many parts of the world for around 10 years prior to 2009 H1N1 flu.

The problem is that there really isnt a definitive answer a variation of bird flu has probably been around almost since the dawn of human kind in one form or another. Avian influenza strains are divided into two types based on their pathogenicity. In a few cases bird flu has passed from one person to another.

As mentioned earlier some of the viruses currently seen in the North American outbreaks originated in Asia and then spread to the US. The first known avian influenza virus was identified in Italy in 1878 as a serious disease of chickens. In making these changes the human immune.

Only sporadic human cases have been reported since 2015. The evidence shows that the virus may have originated as a bird-borne virus and changed its genetic makeup and as a result it was passed on to humans. By April 18 the virus had spread.

Where does bird flu come from. The current strain of H1N1 originated in pigs which are easily infected with flu viruses from other pigs. The most well-known HPAI strain H5N1 was first isolated from a farmed goose in Guangdong Province China in 1996 and also has low pathogenic strains found in North America.

However in the late 1990s a series of reassortment events occurred between influenza viruses found in pigs humans and birds. The findings encompass the origin and evolutionary history of the virus. A study published today in Nature 1.

Most people who have developed symptoms of bird flu have had close contact with sick birds. Bird flu or avian influenza is a viral infection spread from bird to bird. Outbreaks of bird flu have occurred in Asia Africa North America and parts of Europe.

H5N1 occurs naturally in wild waterfowl but it can spread easily to domestic poultry. One question that gets asked quite a bit is where did Bird flu come from. Since 2003 over 800 people have been infected and 454 have died with most fatalities in Indonesia Egypt Vietnam China Cambodia Thailand and Canada.

Pereira and colleagues propose a relationship between human and avian flu viruses after a study shows an antigenic relationship between the 1957 human pandemic A virus and an influenza A virus isolated from a turkey. Since then high-pathogenic versions of H5N1 have spread from Asia to Europe and Africa resulting in millions of poultry infections.

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