bird flu mutation
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World Health Organization officials are increasingly concerned that a thus far unexplained outbreak of the bird virus could mean that a long-feared scenario has been borne out -- that the virus may have mutated so that it can be passed from one human to another.A leading WHO scientist concludes that the H5N1 strain of bird flu shows all the earmarks of being able to repeatedly mutate as it develops resistance against any antiviral drugs that are deployed against it.(Adds WHO comment, updates figures) By Tan Ee Lyn HONG KONG, March 11 (Reuters) - A Chinese expert on respiratory diseases says the H5N1 bird virus has shown signs of mutation and "People who were killed by bird last year and this year were too poor to seek treatment. If you happen to have Deadly bird flu is mutating to spread from person to person, bringing a disastrous global pandemic closer, experts fear. Evidence from Southeast Asia suggests that the virus, which Deadly bird is mutating to spread from person to person, bringing a disastrous global pandemic closer, experts fear.HONG KONG (Reuters) - A Chinese expert on respiratory diseases says the H5N1 flu virus has shown signs of mutation and urged vigilance at a time when seasonal human influenza is at a peak, newspapers "People who were killed by bird flu last year and this year were too poor to seek treatment. If you happen to have Watch out for the other bird flu H5N1 is not the only threat - another form of bird that infects humans is common in poultry and, with a few mutations, could become a killer too Indonesia holding out for bird flu vaccine deal As HSToday.us and HSToday have reported, current testing shows flu strains are undergoing rapid and troubling mutations that are pushing the viruses closer to being able to be passed between humans.
Chinese Health officials have mark the fourth confirmed instance where there was a inter-family H5N1 spread of the virus.NEWS.com.au In-Depth Feature on Flu. THE world scrambles to respond to a mystery virus that is only one mutation away from creating a global pandemic that could kill millions. "ATO insider" claims data bungles are holding up your $900. Money & Me: Time to lock in your rate?HONG KONG (Reuters) - A Chinese expert on respiratory diseases says the H5N1 bird flu virus has shown signs of mutation and urged vigilance at a time when seasonal human influenza is at a peak, newspapers "People who were killed by bird last year and this year were too poor to seek treatment.
If you happen to have However, if scientists are able to continue to monitor and secure viral isolates from humans infected with bird flu, they may be able to map a mutation trajectory that will help predict when the avian virus will cross the threshold to become a human pathogen.Provides a wealth of information about H5N1 and pandemic flu. Flu Wiki Tour and Frequently Asked Questions Flu Topics But if - when - a pandemic comes, and millions of people die around the world over a period of months, the reality will be one of two alternatives. The risks posed by an outbreak of passed from chickens in the Far East, in coutries such as Vietnam and Thailand, burst into the news in February. But now they Instead, we see research into how to make the bird flu virus more deadly, we see vaccine campaigns being prepared, we see anti-aids drugs making their entree onto the stage as possible agents to Beat the Bird Virus: how to protect yourself from the coming bird pandemic; By Mike Adams - Truthpublishing.com FLU INFECTING A PERSON: graphic artwork (above) showing avian influenza viruses (H5N1 shown in green) infecting a person (with lungs and other This dramatic change in the genotype is called antigenic shift to distinguish it from the more minor changes that occur due to mutation or poor fidelity RNA copying,Backyard or free-range poultry are not fuelling the current wave of flu outbreaks stalking large parts of the world.
The deadly H5N1 strain of bird flu is essentially a problem of industrial poultry practices. All the available evidence indicates that, for such a mutation to occur, it needs a large number of birds in Win a trip to South Africa to watch The British & Irish Lions However, if a flu pandemic strikes, the virus is likely to be an as yet unknown mutation of H5N1, meaning existing vaccines would offer only partial protection.The only known effective way to stop spreading of the bird flu is total destruction of all infected birds. Hundreds of thousands of birds have become victims of the virus, mainly poultry: hens, ducks and geese. Fortunately so far the virus does not infect people.
But, the danger of this pathogen’s mutation is very high.Sunday Observer - Suspected human case of ; Casual Transmission of H5N1 in Thailand and Indonesia; Suspected Famiial H5N1 Cluster in Cianjur Indonesia; Family Clustering of Avian Influenza A (H5N1) | CDC EID; NEJM -- Probable Person-to-Person Transmission of Avian Influenza A (H5N1); NEJM --The Avian Fright: Politically Timed for Global “Iatrogenocide” If avian flu becomes more than a threatened pandemic, it will have done so by political and economic design. continuance of genetic studies breeding more mutant flu viruses likely to outbreak, inside trading scandals involving pandemic savvy White Flu May Kill Millions of People A flu that is widespread among Asian birds, and very lethal to humans, may acquire the ability to spread easily from human to human. If this happens we may get a pandemic (a worldwide epidemic) that could kill anywhere between 2 and 100 million people worldwide.47 people have already died in Southeast Asia from the H5N1 bird flu virus. WHO officials fear this could be the biggest and deadliest outbreak of influenza since the Spanish epidemic of 1918-1919 which killed between 20 million and 50 million people worldwide.Scientists studying virus samples from the human outbreak of avian flu in Turkey have identified three mutations in the virus's sequence.
They say that at least two of these look likely to make the virus better adapted to humans.William Schaffner, a bird expert at the Vanderbilt University, called the mutation "noteworthy but not worrisome." Generally it takes a series of mutations in a bird flu virus to increase the danger of a pandemic in humans, he said by telephone.Mutations that could make it easier for the bird virus to infect humans have been found in a sample taken from a patient in Turkey, a report in the journal Nature said Friday. The Nature report cites a second mutation that also "signals adaptation to humans." viruses mutate all the time, Cheng said.The World Health Organization said the flu virus that killed two Vietnamese sisters did not contain human genes, meaning there is still no sign the virus sweeping Asia has mutated into a new, more contagious form. So far, there have been no known cases of person-to-person transmission in the current bird outbreak.Chicken in a basket: the rapidly mutating bird virus killed seven members of an Indonesian family The strain of bird flu that killed seven Indonesian family members in May was mutating as it spread from person to person, according to confidential No sign of flu mutation in Indonesian family 26 May 2006 H5N1 flu virus has mutated to infect people more easily and is circulating in birds in Africa and Europe. The mutation allows the virus to live and thrive in the human nose, throat, and upper respiratory tract, which are much cooler than avian body temperatures.From molecules to physiology Because efficient viral growth in the upper respiratory tract of humans can facilitate virus excretion by coughing and sneezing, a mutation of PB2 amino acid 627, which contributes to efficient growth at this site in a mammal, may be prerequisite for efficient human-to-human transmission.Left and Right, both sides get a fair shot.
Officials in at least two nations now suspect the avian bug has mutated into a virus that is being transmitted from human to human — a development world health authorities have estimated could result in the deaths of tens of millions.Role-playing different outbreak possibilities over the past few months led federal health officials to broaden their focus on how to detect a bird-flu mutation in another country and quickly send overseas help.(NaturalNews) The avian has undergone a critical mutation making it easier for the virus to infect humans, according to a study conducted by researchers at "We have identified a specific change that could make flu grow in the upper respiratory tract of humans," lead researcher Yoshihiro Kawaoka said.Scotsman.com News - Scottish news direct from Scotland - Fresh concern over bird flu mutation TESTS have revealed that a father probably caught bird from his son – raising concerns about the ability of the virus to spread from person to person.When it comes to flu, health officials' great fear is that the virus could mutate to a form easily spread from human to human. A Vietnamese study now claims that nightmare scenario is one step closer "A mutation allowing the virus to replicate effectively in mammal tissue and become highly virulent" has occurred.Viruses with a high mutation rate such as influenza virus usually exist as a swarm of variants, each slightly different from the others. These are called H5N1 bird quasispecies.THE public would put themselves at risk because they would not trust politicians to tell the truth if the country was hit by a major outbreak of flu, a world expert on disaster management has claimed. Fresh concern over flu mutation Although many scientists have been concerned that the H5N1 bird flu virus may mutate one day and become easily human transmissible, a recent study seems to indicate that it might not spread easily Bird Flu / Avian News A global flu pandemic could kill as many as 150 million people if the world fails to prepare for an expected mutation of the bird virus enabling it to spread from human to human the United Nati Governments and international organisations have begun preparations for a flu pandemic.
(ABC)Viruses with a high mutation rate such as influenza virus usually exist as a swarm of variants, each slightly different from the others. These are called H5N1 bird quasispecies.** Russian Scientist Warns Bird Slaughter Will Not Stop Flu Spread ; ** WHO Experts to Monitor Bird Flu Outbreak in Ukraine; ** Flu Found in 19 Crimean Settlements; ** Flu Virus Mutation in Ukraine is Unique Mutations of flu virus detected in Turkish sample One mutation found "suggests the virus might be more inclined to bind to human cells rather than animal cells," Cheng said, but there's no evidence that it's becoming more infectious.Hong Kong has virtually shut down as hospitals are inundated with thousands of suspected bird flu cases. In the area of preventative measures, the city has taken dramatic steps to ensure that new strains of bird don't come from its own poultry. New influenza strains capable of spreading through a human population Dr.
David Nabarro of the World Health Organization (WHO) says bird flu could spread to humans at any time, killing anywhere from five million to 150 million people.Human Nose Too Cold For Bird Flu, Says New Study (May 15, 2009) — Avian influenza viruses do not thrive in humans because the temperature inside a person's nose is too low, according to new research. The authors of the study say this may be one of the reasons why VIETNAMNET - Mang thong tin truc tuyen VietNamNet Bridge - Highly pathogenic avian influenza (HPAI) is temporarily under control in Viet Nam, however the risk of a bird flu outbreak is still on high alert.INDONESIAN Health Minister Siti Fadilah Supari claims the United States and World Health Organisation are part of a global conspiracy to profit from the spread of bird flu, and the US may use samples to produce biological weapons.Kim Chang-sup, an official for South Korea's Agriculture Ministry, confirmed the fourth outbreak of the deadly bird flu virus strain H5N1 so far this year. Japan confirms another outbreak of H5N1 bird - NEWS.Tuls.Net says:The H5N1 strain of bird flu that has killed 241 people is not the only one that could trigger a pandemic, according to research in America. A few H7 strains of the flu virus have started to evolve some of the traits they would need to infect people easily, scientists have discovered.TORONTO -- A diagnostic test designed by Canadian researchers and used in Vietnam to detect H5N1 avian flu is out of date, scientists from the National Microbiology Laboratory admit -- raising the possibility some human cases may have been dismissed in error.
UN agency says bird flu contained in North Korea Researchers have discovered a detail of the H5N1 bird virus's structure that could be exploited to make new, targeted influenza drugs. Bird flu update: 14 August 2006 14 August 2006 The century's other great pandemics, of 1957 and 1968, were sparked by hybrid flu viruses—human flus that acquired some genes from an avian source. World Unprepared for "Bird Flu" Pandemic, Experts Say Alaskan Ducks Tested for Bird Flu Researchers have sequenced the bird flu viruses that killed two people in Turkey in early January, and say that one of them contains a worrying mutation.Experts fear that if the H5N1 strain mutates into a highly contagious form, it would provoke a pandemic on the scale of the 1918 Spanish flu outbreak, which claimed tens of millions of lives. No sign of bird flu mutation after Pakistani dies: WHO; 02-JAN-2008 Intellasia | AFP; Jan 2, 2008 - 7:00:00 AM;BEIJING, Jan 30 (Reuters) - The deadly H5N1 form of the bird flu virus is rapidly mutating and the world must be on guard even though the disease has yet to be transmitted between humans, experts told a meeting in Beijing, Chinese media said on Tuesday.Limited human-to-human transmission of bird flu might have occurred in an Indonesian family but there is no evidence the virus has mutated to allow it to pass easily among people, the World Health Organisation (WHO) said.Despite two cases of genetic mutation in bird flu in Egypt that moderately reduced the effectiveness of oseltamivir, the most strongly recommended drug, the United Nations health agency is not changing its recommendation because the level of resistance Monday, 22 January 2007, In this and all other H5N1 investigations,GENEVA (AFP) — The World Health Organisation on Friday ruled out any mutation of the potentially fatal H5N1 strain of the bird flu virus after a case of inter-human transmission of bird may have been detected in Pakistan.Despite the virus' slight mutation in the father and son, Uyeki insisted that an analysis suggested there was "nothing remarkable about these viruses."; Bird flu has killed at least 130 people worldwide since it began ravaging Asian poultry stocks in late 2003.
flu: The mutation risk; The big worry in the bird-flu scare is that the virus, at present a low-scale killer, could mutate into a pathogen that could claim millions of lives. But how could this happen? And is it a serious risk?VietNamNet Bridge - Japanese and Vietnamese scientists have identified a mutation of an H5N1 avian virus that can grow in the human upper respiratory tracts. Normally, bird flu does not grow well in the throat or nasal passages of humans. Bird-flu virus mutation discovered by Japanese and Vietnamese scientist A website by the People's Daily newspaper; China, business, world, science, education, sports news and commentaries The mutation of influenza virus is a natural process.
There is no scientific evidence backing the theory that H5N1 bird flu virus has evolved as a result of China's vaccination program, it said.The case dates back to December: father and son both contracted the H5N1 virus. The young man did not survive. It is nit the first case, but the widely feared mutation of the virus has been excluded. Beijing (AsiaNews/Agencies) – Chinese health authorities today confirmed a case of human to human contact of Flu, Mutating to More Easily Infect Humans October 12, 2007 The latest mutation gives the virus the ability to thrive at much lower body tissue temperatures.
Birds usually have a body temperature of 106 degrees Fahrenheit while humans are typically at 98.6 degrees.Seven members of a single family were killed by bird in May. "There was a mutation found, it was in a report recently given to the (Indonesian) government. It was the summary of the investigation into the northern Sumatra case," she was quoted as telling by Reuters.Interactive educational crosswords for Grades 4-6 » Bird Flu: Summary + Web Resources | Science Crosswords Controlling immune response may cut death rate Molecular virology: Was the 1918 pandemic caused by a flu? Was the 1918 flu avian in origin? (Reply) mutation sparks concern The bird virus H5N1 has mutated into a form that makes it more infectious to humans, increasing the risk of a human pandemic, researchers have found. "The viruses circulating in Europe and Africa all have this mutation," Dr Kawaoka said.
"So they are the ones that are closer to human-like flu."Oshitani said there are worrying signs that a mutation is looming. Growing numbers of people are being infected with bird -- 64 cases have emerged in Asia so far this year, compared with 44 for the whole of 2004 Until now, it has largely been confined to certain species, Scientists cannot predict with certainty what this H5N1 influenza will do. Evolution does not function on a knowable timetable, and influenza is one of the sloppiest, most mutation-prone pathogens in nature's storehouse. Recent outbreaks of avian flu, SARS,China has for the first time reported human cases of avian flu.
The country has begun vaccinating hundreds of millions of chickens and ducks in areas hard hit by the bird flu virus known as H5N1, and plan to vaccinate billions more, in an effort to prevent more human cases.Analysis now has indicated that the virus itself has not undergone the genetic mutation that might mark its development of a capability for efficient and sustained human transmission, - flu virus in Indonesia not transmitted via humans: WHO official; - WHO confirms new human death of bird in Indonesia; -. .
