Re: China Agricultural University detected two cases of dogs infected with influenza A
Four flu pandemic with the animals,
2009-11-30 14:50
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China is now the first case of a dog infected with a flow of Experts: A flow and the avian flu alert recombinant reporter Statistics found that - on Human Pandemic Influenza - Influenza Russia (1977) virus genome: The serial number of influenza viruses also reintegration H1N1, since it is H1N1 subtype of influenza virus to reproduce, which naturally contains the avian influenza gene fragments.
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China is now the first case of a dog infected with a flow of Experts: A flow and the avian flu alert recombinant reporter Statistics found that --
Four flu pandemic with the animals,
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AP executives said yesterday that the Ministry of Agriculture, China Agricultural University, College of Veterinary Medicine Clinical Hospital 52 days ago from the nose and throat swab samples disease in dogs were detected in two samples was positive for Influenza A H1N1 influenza etiology.
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Gene sequence analysis showed that the virus with the current population pandemic virus homology of 99%.
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France late last century's four major influenza statistics found that four major influenza has a relationship with animals.
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19, the National Avian Influenza Reference Laboratory pairs of cities in Heilongjiang Province, a slaughterhouse pigs were detected in four samples positive for influenza A H1N1 influenza etiology.
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Gene sequence analysis showed that the virus with the current population of the Influenza A H1N1 pandemic influenza 99% homology, belong to the same kind of virus, the virus does not mutate.
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The face of severe influenza prevention and control of the situation, the ministry required local basis of the work in the previous stage for further efforts to strengthen prevention and control, strengthening animal influenza A H1N1 influenza surveillance and epidemiological investigations, to enhance a comparative analysis of the virus research, pay close attention to animal A type H1N1 influenza virus variation.
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The official also said that the world has 13 countries and regions have in vivo detection of influenza A H1N1 influenza viruses. The World Organization for Animal Health (OIE), experts say, animals infected with influenza A H1N1 influenza virus is normal, there is no evidence that animals in the influenza A H1N1 human transmission of influenza to play a special role.
Expert Interpretation
A flow of non-infected pigs and dogs guard a terrible flow and reorganization of the avian flu
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Whatever is found in people suffering from the A stream transmission of the virus dog, or prior to transmission to pigs, are not terrible, just one case, two animals with the virus mutates is another matter. Worthy of attention is human influenza virus and the avian flu virus re-occurring mutations. "army Influenza A H1N1 influenza joint prevention and control checks on members of the Group, the Air Force General Hospital, said Cao Jingui, director of Infection Control.
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Transmit the virus to pigs, dogs, in fact is a kind of organizational compatibility issues. In medical experiments, many experiments with dogs, pigs, rabbits, rats do, and this shows a lot of virus in some animals and humans are compatible.
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Thus, a stream of people pass on the virus, whether animal or animals to people, from a medical point of view, are not too horrible thing.
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In addition, a flow rate of the virus to death is not high, even if small variations are not particularly big problem, without too nervous.
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However, from a professional point of view, are most afraid of is that the current flow of the virus and avian influenza A virus recombinant
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Recently, Academician Zhong Nanshan said that a stream should be vigilant against avian flu and the possibility of reorganization of variation, such a situation arise, "will be a very big disaster."
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"Because in recent years, in addition to SARS, the avian flu is a high mortality rate, once the human influenza virus and avian flu virus re-occurring mutation, would be the most worrying. After all, there have been avian flu in our country, in theory it is possible to have an opportunity to place the reorganization. "Cao Jingui director, said.
Four pandemic
Strains of influenza gene fragments are inclusive of birds
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Over the past century, four major human influenza, avian influenza strain contained in both gene fragments, in which Asian flu, the Hong Kong flu explicitly for human influenza virus, avian influenza virus occurred in a reorganization of unknown animals, and then re-transmitted to human-caused disasters.
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The first human influenza pandemic - the Spanish flu (1918)
Virus genome: The retrospective study found that for the H1N1 subtype virus, pathogens and viruses all eight gene segments from birds.
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Consequences: the Spanish flu caused the world's 25 million -5000 million deaths.
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The second meeting of the Human Pandemic Influenza - Asian flu (1957)
Virus genome: Asian Influenza is caused by the H2N2 subtype virus, and that year, southern China a place at the same time an unidentified animals infected with the human H1N1 virus and H2N2 avian viruses, human and avian influenza virus genes in vivo in its restructuring, and then transmitted to humans.
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Consequences: Asian flu caused about in the world more than one million people died.
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3rd Conference on Human Pandemic Influenza - Hong Kong flu (1968)
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Virus genome: Virus serial number for H3N2, it appears very likely originated in Hong Kong, Guangdong in a certain place is unknown animals, only animals infected with human H2N2 strain of the virus, there was then infected with avian H3Nx strain of the virus, the virus re - after a new virus appears and quickly transmitted to humans.
Consequences: in the world causing more than one million people died.
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4th Conference on Human Pandemic Influenza - Influenza Russia (1977)
Virus genome: The serial number of influenza viruses reintegration also H1N1, since it is H1N1 subtype of influenza A virus to reproduce, which naturally contains the avian influenza gene fragments.
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The consequences: Since 1950, the former mainly for global influenza strains H1N1, before many people were born on this virus has a certain immunity, so the Russian influenza is almost around the globe, but for the low mortality rate of influenza. :tiphat:
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