Sentences with phrase «with avian influenza virus»

Two groups of scientists who carried out highly controversial studies with the avian influenza virus H5N1 have reluctantly agreed to strike certain details from manuscripts describing their work after having been asked to do so by a U.S. biosecurity council.

Not exact matches

It is feared that if the avian influenza virus combines with a human influenza virus (in a bird or a human), the new subtype created could be both highly contagious and highly lethal in humans.

In March 2013 the first human infections with the avian influenza A (H7N9) virus were reported in China, and since that time hundreds of cases have been documented.

Ebright: Future work with lab - generated transmissible avian influenza viruses should be performed only at the highest biosafety level, only at the highest biosecurity standard, and only after approval by, and under the oversight of, a national or international review process that identifies risks and benefits, weighs risks and benefits, mitigates risks, and manages risks.

«These characteristics fit with increased virulence of these emerging avian H7 viruses compared to that of human influenza viruses,» says Dr. Kuiken.

Using virus histochemical analysis, the investigators looked at the pattern of attachment of two genetically engineered emerging H7 viruses (containing the hemagglutinin (HA) of either influenza virus A / Shanghai / 1 / 13 or A / Anhui / 1 / 13) to fixed human respiratory tract tissues and compared the findings to attachment patterns seen with human influenza viruses with high transmissibility but low virulence (seasonal H3N2 and pandemic H1N1) and highly pathogenic avian influenza (HPAI) viruses with low transmissibility and high virulence (H5N1 and H7N7).

I understand China's desire to curtail the spread of Influenza A, both to buy more time to prepare a vaccine and to limit the opportunities that the virus will mix with the far more lethal avian influenza endemic to thInfluenza A, both to buy more time to prepare a vaccine and to limit the opportunities that the virus will mix with the far more lethal avian influenza endemic to thinfluenza endemic to the region.

Now researchers report new evidence for such a link: Mice infected with the H5N1 avian influenza virus lose the same dopamine - releasing neurons that are destroyed by Parkinson's disease.

In 2011, it became embroiled in heated debates about «gain - of - function» experiments with the deadly avian influenza virus H5N1 that made it more transmissible in mammals.

«As the risks of such research and its publication are debated by the community, I argue that we should pursue transmission studies of highly pathogenic avian influenza viruses with urgency,» he writes in Nature.

In additional experiments, the scientists found that participants who had significant antibody responses did not necessarily also have significant immune system T cell responses to avian viruses, indicating that these two arms of immunity can be independently boosted after vaccination or infection; that individuals who reported receiving seasonal influenza vaccination had significantly higher antibodies to the avian H4, H5, H6, and H8 subtypes; and that participants with exposure to poultry had significantly higher antibody responses to the H7 subtype, but to none of the other subtypes tested.

By comparing gene expression in the lungs of ducks infected with either highly or weakly pathogenic avian influenza H5N1 viruses, the team identified genes whose expression patterns were altered in response to avian influenza viruses.

When the researchers exposed chickens to lethal doses of the avian influenza virus and the Newcastle virus, birds inoculated with the recombinant vaccine produced antibodies against both viruses, offering protection against both diseases.

But Tompkins warns that repeated vaccinations with distinct hemagglutinins would probably be needed to protect birds from the many strains of avian influenza virus.

Insights into Avian Influenza Virus Pathogenicity: the Hemagglutinin Precursor HA0 of Subtype H16 Has an Alpha - Helix Structure in Its Cleavage Site with Inefficient HA1 / HA2 Cleavage

Similar to the results obtained with cultured human cells, the transgenic mice were resistant to avian influenza viruses but susceptible to flu viruses of human origin.

IRTA has also developed multiple animal and / or arthropod models to work with zoonotic pathogens such as avian and swine influenza, RVFV, MERS - coronavirus, West Nile virus and chikungunya virus.

As dogs have been infected with both mammalian and avian influenza viruses, they have the potential to act like pigs, as «mixing vessel» hosts for the generation of new strains.

Filed Under: 3rd year, Vet Student Experience Tagged With: 3rd year, APHIS, avian influenza, disease outbreak, foot and mouth disease virus, foot - and - mouth, foot - and - mouth disease, foreign animal disease, poultry, public health, Smith - Kilborne Fellowship, USDA, vet school, vet student, Veterinary Experience, veterinary school, veterinary student

Avian influenza infections in cats appear to be associated with outbreaks in domestic or wild birds by way of eating raw meat infected with the virus.

Only in rare cases have dogs been known to become infected with avian influenza, and most of the studies of dogs which tested positive for avian influenza were performed in dogs which were infected with the virus for laboratory studies.