| Avian influenza (149) |  |
| Spanish influenza (1) | |
| Swine influenza (48) | |
| Avian influenza (149) | |
| Spanish influenza (1) | |
| Swine influenza (48) | |
It's not a bird flu, but what is it, and where does it hide? One week, no food S Abbas Raza Aeon 1 may 2013 Couple fast for seven days.
identify bird flu and figure out what plants the bees that made your honey were pollinating. Damon Little, a curator at the New york Botanical gardens has used it to see
#Genetically Modified Chickens Developed Than Cannot Transmit Bird flu Scientists develop GM chickens that do not spread bird flu.
British scientists have developed genetically modified (GM) chickens that cannot transmit bird flu infections#a step that in future could reduce the risk of avian flu spreading
and died when they were exposed to H5n1 bird flu, they didnt transmit the virus to other chickens they came into contact with.
H5n1 bird flu has been circulating in Asia and the Middle east, with occasional outbreaks in Europe, since 2003 and has killed
ECONOMIC AND FOOD SECURITY THREAT In Southeast asia, China and parts of Africa, bird flu is already a major economic and food security issue,
said this week it was raising its bird flu alert level after detecting H5n1 bird flu at poultry farms.
and food security in parts of the world where bird flu is a major threat, but said using them would probably add slightly to farming costs.
the researchers introduced a new gene into them that manufactures a small decoy#molecule that mimics an important control element of the bird flu virus. The replication machinery of the virus is tricked into recognizing the decoy molecule instead of the viral genes
they infected 10 of them and 10 normal chickens with H5n1 bird flu. Like the normal chickens, the transgenic birds became sick with the virus,
The researchers said they now plan to work on trying to make chickens that are fully resistant to bird flu rather than just blocking bird-to-bird transmission.
#H7n9 Bird flu Virus Capable of Airborne Transmission One strain of the H7n9 bird flu virus appears to spread easily through the air between ferrets which are a good model for how the virus may spread in humans a new study from China says.
So far there have been no reports of sustained human-to-human transmission with H7n9 bird flu.
But the new findings add to growing evidence that the virus likely needs to undergo just a few genetic mutations to gain the ability to spread between people said Dr. Richard Webby a bird flu expert at St jude Children's Research
See New Bird flu Virus: 6 Things You Should Know. H7n9 emerged in China in February
#H7n9 Flu Study Hints at How It May Spread in People It's likely that the new H7n9 bird flu virus can spread through the air on a limited basis according to a new study that looked at how the virus spreads in animals.
H7n9 appears to be more infectious than the H5n1 bird flu virus Webby said. When researchers infect ferrets with H5n1 they usually do not see transmission through airborne
#It's Time To Worry About the New Chinese Bird flu: Op-Ed Jeff Nesbitâ was the director of public affairs for two prominent federal science agencies
It's time for the world's public health officials to pay very close attention to the new bird flu outbreak in China first detected in March.
 the first reported case of the new bird flu strain outside China; the fact that any potential vaccine tests in animals (not humans) may be up to six weeks out;
Chinese officials nd public health officials around the world ad hoped that this potentially virulent and deadly bird flu strain (H7n9) could be contained inside China
days after returning to Taiwan according to Taiwan's Central Epidemic Command Center nd the fact that Chinese officials are publicly saying that at least some of the existing cases may have involved human-to-human transmission this new bird flu strain could spread nd fast.
New Bird flu Virus: 6 Things You Should Know None of this is good. Right now 18 percent of the cases in China have ended in deaths.
While this is still less deadly than the previous avian flu outbreak in China six years ago he H5n1 bird flu virus eventually killed more than 300 people after spreading from China to other countries in 2006 he death rate for this new Chinese bird flu
Despite widespread fears among public health officials that the earlier bird flu strain years ago might become a human-to-human pandemic that didn't occur.
Nearly all reported cases of the earlier bird flu strain while deadly seemed to jump from poultry to humans who were handling them or in contact with them.
But if this new bird flu strain does in fact become capable of human-to-human transmission
One flu-virology expert John Oxford from Queen Mary University told Reuters this week that the emergence of this completely new strain of bird flu infections in humans was very very unsettling.
This new strain is in fact a mixture of three different types of bird flu variants and seems to have been quietly spreading in chickens without anyone knowing about it he said.
Public health officials in general have been worried about bird flu viruses for years. Research several years ago showed that the virus could be transmitted from an expectant mother to a fetus
New Rules on Mutant Bird flu Research Stir Debate What's more it could reignite fears about the possibility of deadly global pandemics.
The 2006 Chinese bird flu outbreak came on the heels of those global pandemic warnings. The good news is that China is more transparent about disease epidemics now than it was a decade ago
And China learned a lot about how to limit the spread of bird flu after the last outbreaks simply by closing down poultry markets that appear to be likely starting points.
Just because the previous bird flu outbreak in China didn't spread quickly and prove as deadly as some had feared does not mean that this new outbreak will follow a similar course.
Drone Wars in America This article first appeared as It's Time To Worry About the New Chinese Bird flu in the column At the Edge by Jeff Nesbitâ on U s. News & World Report.
#New Bird flu: What the First 82 Cases Reveal Although health officials still haven't confirmed the species of animal that is the source of the H7n9 bird flu outbreak in China most people who fell ill had contact with birds or pigs according to a new report.
The report published online Wednesday (April 24) in the New england Journal of Medicine describes an investigation of the 82 people who were infected with the virus from the beginning of the outbreak (in February and March) through April 17.
So far health officials know of 108 people who've fallen ill with the new strain of bird flu 22 of
which points to poultry markets as the likely source of H7n9 bird flu infections. Other findings from the investigation of the 82 cases include:
Aninvestigation of 82 people infected with the new bird flu virus shows most who fell ill had contact with birds or pigs.
#One Source of Bird flu Virus Found Poultry markets in Shanghai are one likely place where people are contracting the new bird flu virus a new study from China suggests.
So far health officials know of 108 people who've fallen ill with the new strain of bird flu 22 of
which is that people can contract bird flu at poultry markets said Dr. Richard Webby a bird flu expert
Previously reports of infection with the H5n1 strain of bird flu were linked to poultry markets Webby said.
However the new study does not suggest that the new H7n9 bird flu virus originated in Shanghai poultry markets
A poultry market Shanghai may be one source of H7n9 bird flu infections. This story was provided by Myhealthnewsdaily a sister site to Livescience.
First Case Detailed in New Report The case of a father and daughter in China who both became infected with H7n9 bird flu provides the strongest evidence yet that the virus can transmit from person to person experts say.
See 6 Things You Should Know About the New Bird flu Genetic testing revealed that the patients were infected with nearly identical strains of H7n9.
Limited human transmission of bird flu viruses has been seen in the past and is not surprising Rudge and Coke said.
as the avian influenza virus is thought to have done. And we still don't know what it might do to someone who is immunocompromised by HIV or by drugs,
Yet the number of swine-flu sequences in the international Genbank database is about a tenth of that for avian flu viruses.
and avian flu genes were introduced probably into human populations two to six years before the pandemic, the researchers found.
Transgenic chickens curb bird flu transmission: Nature Newsresearchers have made genetically modified chickens that can't infect other birds with bird flu.
The H5n1 strain of influenza which raged through Southeast asia a decade ago and has killed hundreds of people to date remains a problem in some developing countries,
Caution urged for mutant flu workwhy would scientists deliberately create a form of the H5n1 avian influenza virus that is probably highly transmissible in humans?
39 flu researchers declared a 60-day pause in the creation of lab mutant strains of the H5n1 avian flu virus. The hiatus,
The number of avian flu sequences deposited in the database skyrocketed between 2003 and 2010, before dropping off in 2011.
The number of avian flu sequences from isolates collected in each year peaks in 2007 and plummets thereafter.
Just 7 of the 39 countries with more than 100 million poultry in 2010 collected more than 1, 000 avian flu samples between 2003 and 2011.
Surveillance of avian flu viruses is bad, but that of pig viruses is worse. Yet pigs are a serious pandemic risk:
they can be infected co with both human and avian flu strains, which means that they provide ample opportunity for gene swapping and, thereby,
a highly conserved set of six genes that allows the virus to swap genes with flu viruses from other species much more freely than the seasonal H1n1 that circulated before 2009 (see Pandemic 2009 H1n1 virus gives wings to avian flu).
and the United kingdom, are hotspots of emerging zoonotic infections, such as avian influenza.""Zoonoses present a major threat to human and animal health.
3 9 august 2012h5n1 moratorium Researchers should continue a self-imposed moratorium on lab studies that give new properties to the highly pathogenic avian influenza virus H5n1, according to Anthony Fauci, director of the US National Institute
Rinderpest is as deadly to cattle as highly pathogenic H5n1 avian flu is to chickens. In past decades, outbreaks ripped through herds and wiped out up to 90%of animals, often leaving famine,
Recent experiments show how Avian flu may become transmissible among mammals. In an era of constant and rapid international travel,
Mapping the H7n9 avian flu outbreakssources: Multiple, including WHO and Xinhua News agency. To download map file to view in Google earth,
well-established avian flu virus H5n1 may help to target H7n9 surveillance and control efforts. The map shows human cases of H7n9 (blue circles) superimposed on a risk map developed for H5n1,
and an expert in the epidemiology and ecology of avian flu viruses at the Free University of Brussels, says that
H7n9 bird flu poised to spreadthe H7n9 avian flu virus greatly expanded its geographical range over the weekend,
says Marius Gilbert, an expert in the epidemiology and ecology of avian flu viruses at the Universitã libre de Bruxelles in Belgium.
whether this novel avian influenza virus first reported in humans in China less than two weeks ago will rapidly fizzle out,
He also co-convenes the Asia-Pacific Working group on Migratory Waterbirds and Avian influenza with the Food and agriculture organization of the united nations (FAO.
Bird flu deaths Two men have died after being infected with a type of bird flu never before seen in humans
Novel bird flu kills two in Chinascientists and public-health officials worldwide are on alert after China announced on 31 march that two people had died
and a third was seriously ill from being infected with a new avian influenza virus, H7n9, that has never been seen before in humans.
because this protein allows the virus to bind to host cells seems to belong to a Eurasian group of H7 avian flu viruses.
with scientific discussions including threats from the avian influenza viruses H7n9 and H5n1. gm. asm. org21-23 may The Pasteur institute in Paris hosts an international symposium on HIV research,
Emergence of H7n9 avian flu hints at broader threatthe H7n9 influenza virus did not emerge alone.
Researchers have traced the evolution of the deadly avian flu currently spreading in China, and have found evidence that it developed in parallel with a similar bird flu, H7n7,
which can infect mammals1. Although there is no evidence that this H7n7 strain will infect humans,
H7n9 virus persists China reported on 11 august its first new case of the H7n9 avian influenza virus in three weeks:
The analysis also reveals a shared ancestor for almost all avian flu strains and an H7n7 virus that struck down horses and mules throughout North america in 1872.
which bird flu viruses don't reproduce. In spite of public opposition and a lack of funding GM meat research has continued to advance.
#Due to the outbreak of highly pathogenic avian influenza virus subtype H5n1 in Southeast asia a programme to monitor influenza viruses in wild birds in Norway was initiated in 2005.
The results showed that low pathogenic avian influenza viruses were present in 15.5%of the samples
Genes from American avian influenza viruses were detected not in the European gull viruses studied. However within avian influenza viruses from Eurasia she found that virus genes were exchanged between influenza viruses typically found in gulls and ducks respectively.
During the breeding seasons of 2008 and 2009 Tønnessen studied the occurrence of influenza virus in the black-legged kittiwake (Rissa tridactyla) at Hornã¸ya in Finnmark in Northern Norway.
which could help halt infectious diseases such as bird flu swine flu and SARS before they take hold. Focusing on the avian flu virus strain H5n1 research published today in the journal PLOS ONE identifies key stages in the poultry trade chain which lead to its transmission to other birds animals and humans.
High risk times for the disease to spread include during transportation slaughter preparation and consumption.
The H5n1 avian flu strain has been responsible for the deaths of millions of poultry as well as 375 confirmed human deaths.
and mammals such as SARS and bird flu represent 60 per cent of outbreaks. As well as representing a significant global health threat they also create a burden to public health systems and the global economy.
#First probable person to person transmission of new bird flu virus in China; But H7n9 is not able to spread efficiently between humansthe first report of probable person to person transmission of the new avian influenza A (H7n9) virus in Eastern China has just been published.
The findings provide the strongest evidence yet of H7n9 transmission between humans but the authors stress that its ability to transmit itself is limited and non-sustainable.
Avian influenza A (H7n9) virus was identified recently in Eastern China. As of 30 june 2013 133 cases have been reported resulting in 43 deaths.
whether the novel avian influenza virus possesses the capability to transmit person-to-person. She concludes that the infection of the daughter is likely to have resulted from her father during unprotected exposure
History of similar viruses gives cause for concernthe H7n9 avian flu strain that emerged in China earlier this year has subsided for now
. Although this previously unrecognized strain of avian influenza A has now been associated with 132 confirmed human infections and 39 related deaths (as of June 14) the rate at
highly pathogenic avian influenza H5n1. Among other commonalities both viruses have a clinical picture that includes bilateral pneumonia acute respiratory distress syndrome
Although avian influenza viruses have not caused widespread human transmission in 94 years of surveillance there have been numerous instances of avian influenza spillover
#Ferrets, pigs susceptible to H7n9 avian influenza viruschinese 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. Ferrets are used often as a mammalian model in influenza research
The potential public health implication of this observation is that a person infected by H7n9 avian influenza virus who does not show symptoms could
#Bird flu in live poultry markets are the source of viruses causing human infectionson 31 march 2013 the Chinese National Health and Family planning Commission announced human cases of novel
#Risks of H7n9 infection mappeda map of avian influenza (H7n9) risk is presented in Biomed Central's open access journal Infectious diseases of Poverty today.
The preliminary results of our study made a prediction of bird flu risk which could explain the pattern of the most recent cases.
The recent human cases of H7n9 avian influenza demonstrate the importance of adopting the lessons learned from H5n1 avian influenza.
Economic studies and studies on small scale producers showed that these producers were hit very hard by avian influenza.
APEIR researchers including Professor Lei Fumin of the Institute of Zoology of the Chinese Academy of Sciences are currently investigating the possible role of wild birds in transmission of H7n9 avian influenza.
This study on avian influenza policies also found that agriculture sectoral policy should be coherent with public health sectoral policy
so as to minimise effects on livelihoods and to prevent the disease caused by H7n9 avian influenza. APEIR is poised to play an important role in investigating
if bird flu became highly contagious among humans which is why UCLA researchers and their colleagues are creating new ways to predict where an outbreak could emerge.
and Egypt's Nile Delta are danger zones where bird flu could combine with human flu to create a virulent kind of super-flu.
Recent research using mice confirms that genes from bird flu and human flu can combine to create dangerous new flu strains.
The mixing of genetic material between the seasonal human flu virus and bird flu can create novel virus strains that are more lethal than either of the original viruses said senior author Thomas Smith director of the Center for Tropical
The researchers looked for locations where bird flu outbreaks human flu outbreaks and swine populations overlapped to predict hotspots where reassortment is more likely using a $1. 3 million grant from the Fogarty International Center at the National institutes of health.
the seasonal H3n2 human flu and the H5n1 strain of bird flu that has crossed occasionally over into humans.
While the World health organization has identified six countries as hosts to ongoing widespread bird flu infections in poultry in 2011--China Egypt India Vietnam Indonesia
Although the researchers had bird flu data for parts of both China and Egypt other countries such as Indonesia don't have full reporting systems in place.
#Conditions linked to deadly bird flu revealed: High risk areas identifieda dangerous strain of avian influenza H7n9 that's causing severe illness and deaths in China may be inhabiting a small fraction of its potential range
and appears at risk of spreading to other suitable areas of India Bangladesh Vietnam Indonesia
Unlike H5n1 the other virulent form of avian influenza to emerge in recent years H7n9 produces little signs of illness in birds
For example in the avian influenza study the maps helped researchers rule out intensive poultry operations in Northeastern China as a source of H7n9
The H7n9 avian influenza virus was reported first in humans in March 2013 in China. Since then over 375 human cases have been confirmed
This work supports the need for better surveillance in animal species for avian influenza says Suarez.
and performed as part of the USAID PREDICT project identified over 116 avian flu strains in wild birds.
In 2013 an H7n9 avian flu strain caused a deadly outbreak in people in China. This surprised virologists as the strain had caused never before disease in humans.
(when a virus jumps from one species to another) of avian flu can be traced back to human contact with domestic poultry.
Although avian flu strain diversity often originates in wild birds it is the mixing of viruses among poultry pigs
and monitor the diversity of all avian flu viruses--not just those known to cause disease.
It revealed that for several of its 8 genomic segments avian influenza virus is not nearly as ancient as often assumed.
which included UA graduate student Guan-Zhu Han and Andrew Rambaut a professor from the University of Edinburgh who is affiliated also with the U s. National institutes of health found a strong signature in the data suggesting that something revolutionary happened to avian influenza virus
According to Worobey the newly generated evolutionary trees show a global replacement of the genes in the avian flu virus coinciding closely with the horse flu outbreak
--which is the other bird flu that has been going for a decade or more now-there has been 600 cases in humans.
But if we rank it highest amongst the avian flu viruses, what does that mean? The next leap is:
What do you think avian flu will do over the next 10 to 15 years? What is the potential for a possible pandemic?
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