Sentences with phrase «avian virus»
The phrase "avian virus" refers to a type of virus that primarily affects birds. It is a virus that can cause various diseases in birds and can sometimes be transmitted to humans as well. Full definition
Avian viruses do not do well in most mammalian species.
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«Deep in the respiratory system, receptors for avian viruses, including avian H5N1 viruses, are present,» Kawaoka explains.
«Fully avian viruses may act differently in nature,» he notes.
But in 1998, researchers discovered that this rock - steady swine H1N1 had combined with a human H3N2 and an American avian virus.
They also identify factors that may be involved in duck host immune response to avian virus infection, including the avian and mammalian - defensin gene families.
Avian viruses prefer α 2,3 galactose receptors, which are common in birds but were thought to be nearly absent in humans.
For folks concerned that this is the next bird flu, it's not worth the alarm, as the virus responsible for avian flu is much more serious, compared to the bacterial psittacosis (Also, it's worth noting that the H7N9 avian virus has not been detected in the United States — neither in humans nor birds.)
Flu strains that circulate in avian viruses have different subtypes of hemagglutanin, called H1 - H16.
Yet pigs are a likely source of a human pandemic H5N1 virus because they are susceptible to both human and avian viruses, creating opportunities for genetic reassortment in co-infected animals.
So far, this avian virus can not easily infect humans and is contracted only through close exposure to infected birds.
The paper explains that this novel H1N1 has two genes from an avian virus that entered Eurasian swine in 1979, three from the old - fashioned H1N1 in North American swine, two genes from the triple reassortants in North American swine, and the final one from humans transmitted to us from birds in 1968.
«They're just pets,» the CEO assured me hastily as he held open the door — the company worked on an avian virus, you see.
That's why looking for the avian virus in humans should become standard practice during outbreaks, he says — whether the virus is dangerous to humans or not.
So far, the killer virus looks like a run - of - the - mill swine flu, not an avian virus as some virologists had suspected — leaving scientists to wonder why the strain was so deadly.
The more humans that an avian virus infects, Stöhr says, the greater the risk that it will morph into a flu pandemic.
Kawaoka, in contrast, stitched the hemagglutinin gene from the avian virus — the H5 — into a H1N1 virus that easily spreads between humans and caused the relatively mild 2009 pandemic.
«That opens the possibility that the avian virus could become a real threat to people and spark a new pandemic,» says Richard Webby, a virologist from St. Jude Children's Research Hospital in Memphis who contributed to the Chinese study.
* Update, 13 July, 10:26 a.m.: The item was updated to clarify that H5N1 is an avian virus and to correct a typographic error.
New strains arising from such mixing have the potential to infect humans and spark a pandemic, so information about swine susceptibility to H7N9 could help scientists gauge the pandemic potential of the avian virus.
Jones - Engel says monkeys might be especially good at picking up a wide variety of viruses, because they spend time both in the treetops — exposed to avian viruses — and on the ground, where they encounter human and other mammalian viruses.
The accusation that Capua and others set off a human epidemic made no sense, she said, because one mild flu case does not constitute an epidemic; moreover, the avian virus she allegedly spread was a different strain than the one that killed the birds in Italy.
Analysis of flu specimens by Canada's National Microbiology Laboratory in Winnipeg and at the U.S. Centers for Disease Control and Prevention in Atlanta, Georgia, have found that the virus is made up of pieces of human, swine, and avian viruses from North America, Europe, and Asia.
While the avian virus (H5N1) has struck at least 18 people in the Chinese outpost, killing six of them, few new cases are emerging.
Avian (bird) flu is caused by influenza A avian viruses that occur naturally among birds.
How, then, did SV40 get through; how did the avian virus get into the MMR vaccine; how did parvovirus slip through the net; and how did AIDS suddenly arrive from nowhere?