Avian influenza is a highly contagious disease that affects birds, particularly wild waterfowl.
Full definition
The virus is almost identical to a strain of
avian influenza virus reported in Asia and may have spread to dogs in live bird markets, said AVMA.
But Tompkins warns that repeated vaccinations with distinct hemagglutinins would probably be needed to protect birds from the many strains
of avian influenza virus.
One of the greatest influenza pandemic threats at this time is posed by the highly pathogenic
H5N1 avian influenza viruses.
«To provide time for these discussions, we have agreed on a voluntary pause of 60 days on any research involving highly
pathogenic avian influenza H5N1 viruses leading to the generation of viruses that are more transmissible in mammals.»
Pandemic flu continues to threaten public health, especially in the wake of the recent emergence of an H7N9 low pathogenic
avian influenza strain in humans.
An outbreak of
avian influenza in poultry farms meant the best way to keep your birds safe was to keep them at home, away from other birds.
Chinese and U.S. scientists have used virus isolated from a person who died from
H7N9 avian influenza infection to determine whether the virus could infect and be transmitted between ferrets.
The results are «very intriguing» but «it is premature to conclude that immunity induced by the [H1N1] virus will provide significant protection from illness associated
with avian influenza H5N1,» caution Laura Gillim - Ross and Kanta Subbarao of the National Institute of Allergy and Infectious Disease in an editorial accompanying the report, published online February 12 by PLoS Medicine.
Given this potential zoonotic risk, control measures
for avian influenza in poultry and birds are being implemented by the affected countries to ensure that persons at risk are sufficiently protected from infection.
The horse influenza viruses evolved
from avian influenza viruses, and the recent appearance of clinically significant canine influenza apparently resulted from a mutation of the equine H3N8 virus.
In a recent development, the Environmental Protection Agency (EPA) was forced to admit that a patented liquid silver solution called Axen30TM when used as a surface disinfectant had the ability to kill multiple strains of MRSA plus additional deadly pathogens such
as Avian Influenza A (Bird Flu), Human Corona virus (SARS), Feline Calicivirus (Norovirus), Rotavirus, Campylobacter jjejuni and Acinetobacter baumannii.
According to the American Veterinary Medical Association, «Currently, there is no USDA - licensed vaccine against H5N1 highly pathogenic
avian influenza infection available for use in companion animals in the United States.»
Highly pathogenic
avian influenza A / H5N1 virus can cause morbidity and mortality in humans but thus far has not acquired the ability to be transmitted by aerosol or respiratory droplet («airborne transmission») between humans.
The studies describe how researchers made the deadly H5N1
avian influenza more transmissible between mammals — possibly providing a blueprint on how to set off a flu pandemic.
For World Zoonoses Day this year, we're exploring diseases
like Avian Influenza and talking with veterinarians to understand how we can better tackle zoonotics.
We're working hard to protect Australia's thriving agricultural industry from a range of threats,
including avian influenza, Foot and Mouth Disease and depleted world bee populations.
Instead, it uses information the CDC posts in the Global Initiative on Sharing
Avian Influenza Data (GISAID) database, launched in 2006 by a number of science institutes and universities worldwide (including WHO, the CDC and the Max Planck Institute for Informatics) to encourage data - sharing in response to the global spread of the H5N1 avian flu.
It came to North America as H5N8 where it mixed with
other avian influenza viruses in the U.S. and Canada to form H5N2 and H5N1, Ma said.
The original
H5N8 avian influenza strain was first found in South Korea in 2014 and subsequently in other Asian countries, including China and Japan, before spreading to Europe.
When Avian Influenza H7N2 infected cats in a New York City animal shelter last year, it was the first outbreak of its kind, and the first documented case of cat - to - cat transmission.
When
Avian Influenza H7N2 infected cats in a New York City animal shelter in late 2016 it was the first outbreak of its kind and the first documented case of cat - to - cat transmission, all in the most populous city in the United States
Defra has reported that test results have confirmed the presence of the H5N8 strain of
avian influenza at three game - rearing premises in Wyre.
«The
H5 avian influenza strains affect poultry worldwide and have a 100 percent mortality rate in chickens within six days,» Ma said.
Also this week, a large, international group of researchers is calling for a Global Initiative on
Sharing Avian Influenza Data, Capua notes (Science, 25 August).
In mid-March, a CDC influenza laboratory sent a shipment of a low - pathogenic strain of
H9N2 avian influenza to a U.S. Department of Agriculture (USDA) poultry lab.
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
Indonesia stopped sharing samples of H5N1
avian influenza because it wanted guarantees about access to vaccines and drugs.
Using a laboratory technique called real - time reverse transcription - PCR to examine the virus's genetic blueprint, they
found avian influenza virus (AIV) genetic material in eight samples - six adult penguins and two chicks.
Wild birds worldwide
carry avian influenza viruses in their intestines, but usually do not get sick from them.
In addition to being a Training Officer for DHS based courses for Foreign Animal Disease Response,
Avian Influenza Response and Disaster Management Personnel Training, she conducts risk assessments and develops plans for shelters and rescue organizations for disaster preparedness planning, along with developing and delivering educational courses for schools, businesses and other organizations.
There is much concern that pigs infected with this H1N1 might become infected with a dangerous influenza virus from fowl, like the H5N1 that
causes avian influenza, leading to a dangerous superbug.
The strain likely resulted from a reshuffling of
several avian influenza viruses circulating in domestic ducks and chickens, Guan's group reported in 2013.
As winter arrives and migratory birds return to the UK, the prospect of renewed outbreaks of
avian influenza becomes a threat to shoots and estates
Thus avian influenza in migratory birds like wild ducks has evolved to be mild, says Paul Ewald, who studies the evolution of infectious diseases at the University of Louisville in Kentucky.
A strain of bird flu that has sickened 132 people and killed 37 in China this year may have more potential to spread worldwide than the dreaded H5N1
avian influenza does.
Phrases with «avian influenza»