1918 and 2009 H1N1 Flu Probably Not Spread by Birds
2010-01-21 0:00

From: ScienceDaily.com


The two strains of the H1N1 influenza virus responsible for the 1918 and 2009 global flu pandemics do not cause disease in birds. The results of the study, published in the February issue of the Journal of General Virology, also show it is unlikely that birds played a role in the spread of the H1N1 virus in these pandemics.

Scientists from the Canadian Food Inspection Agency's National Centre for Foreign Animal Disease (NCFAD) in Winnipeg, Canada, together with collaborators in the USA, injected the 2009 and 1918 H1N1 virus strains individually into chickens. None developed flu symptoms or showed any signs of tissue damage up to18 days later, although about half the chickens developed antibodies against the 1918 H1N1 virus showing limited infection. The 1918 H1N1 virus also did not cause disease in ducks.

The origin of the 1918 H1N1 virus is unknown and despite its genetic similarity to avian influenzas, the results of this study show it is unlikely to have jumped the species barrier from chickens to humans.

Different strains of influenza cause disease in humans, birds and pigs; each type of virus is adapted to cause infection in its host. All cause similar respiratory symptoms. If flu viruses are passed back and forth between hosts (e.g. through close human contact with infected animals) the mixing can lead to development of a novel strain. As they have not encountered the virus before, the human population has little or no immunity to a novel strain which can easily cause infection and spread from person to person. This may ultimately lead to a global flu pandemic.

Dr Shawn Babiuk, a scientist with the National Centre for Foreign Animal Disease who led the research, said, "Working out how major human pandemic flu viruses affect birds and other domestic animal species is crucial in discovering what role, if any, they play in spreading viruses in the human population." Such studies can inform government decisions in responding to outbreaks of influenza in birds, which have major implications for poultry producers. According to Dr Babiuk, "These findings support the use of normal veterinary management practices in poultry infected with pandemic 2009 H1N1 influenza and demonstrate that quarantining and culling infected stocks is not necessary."

Dr Babiuk explained that viruses can behave unpredictably. "Our understanding of exactly how influenza viruses go on to cause pandemics is still limited," he said. "Although our research indicates that birds are unlikely to have played a part in the spread of the 1918 and latest 2009 H1N1 pandemic viruses, they may well still play a part in future pandemics."

Article from: ScienceDaily.com
Images: Source




Related Articles
Swine flu jumps again - to turkeys in Chile - but scientists see no dangerous mutation yet
WHO to stop using term 'swine flu' to protect pigs
The 'False' Pandemic: Drug Firms Cashed in on Scare over Swine Flu, Claims Euro Health Chief
Joseph Moshe (MOSSAD Microbiologist): “Swine flu vaccine is bioweapon”
Hey, whatever happened to swine flu?
Obama Administration Launches Deceptive Swine Flu Propaganda Blitz
"Swine Flu" Hysteria: Cat Gets H1N1?! (Video)
Ottawa councillor wants military to conduct swine flu vaccinations
Avian Swine Flu created by the CIA (Video)
David Icke: ‘Don’t Take The Swine Flu Vaccine’ (Video)
Previous Swine Flu Outbreak Originated At Fort Dix


Latest News from our Front Page

Aurora Shooting Victim Parents Face $200K Court Fees, Bankruptcy, After Failing to Sue Ammo Dealers
2015-08-01 2:17
The 2012 Colorado Theater Shooting still doesn’t add up… Media character and ‘Shooter’ James Holmes in court in 2012-2013. In 2014, Sandy and Lonnie Phillips, the mother and stepfather of Aurora Theater Shooting victim Jessica Redfield Ghawi, tried to sue the ammo companies they believe supplied shooter James Holmes with his ammunition, body armor and other items. They bleived that the online retailer BulkAmmo.com had sold Holmes ...
FBI's Joint Terrorism Task Force Investigating Confederate Flags at MLK's Ebenezer Baptist Church
2015-08-01 2:21
According to the Atlanta Police Department, two White men left four small Confederate Battle Flags outside MLK’s Ebenezer Baptist Church in Atlanta … and get this, the FBI’s Joint Terrorism Task Force is on the scene investigating the incident. Atlanta police Chief George Turner said his agency was working with federal authorities and they have not determined what charges might be ...
Democratic National Committee Chair Wasserman Schultz Can’t Explain Difference Between Democrat Party and Socialism
2015-08-01 2:08
Things got very awkward today when Chris Matthews asked DNC Chair Debbie Wasserman Schultz what the difference was between the modern Democratic Party and Socialism. We haven’t seen that dazed look since Rachel Dolezal was busted as a fraud. Wasserman Schultz was speechless. Completely stumped. Couldn’t answer. Then changed the subject. Because we all know there is no difference between today’s Democrat Party and the radical ...
Catching on slow: Yet Another Study Show Cellphone Radiation Cause Cancer
2015-08-01 1:44
The scientists were right — your cell phone can give you cancer. There have long been whispers of a cancer connection from your cell — and a new study backs up the claims. "These data are a clear sign of the real risks this kind of radiation poses for human health," study author Igor Yakymenko said. Yakymenko’s meta-study — basically a study of ...
Trump Goes #Cuckservative on Immigration
2015-08-01 1:28
For weeks, the media have trumpeted the supposed death of the Trump campaign. First, they claimed, Trump’s campaign imploded on launch thanks to his comments about illegal immigration. Then they claimed that Trump was finished because of his slap at Senator’s (R-AZ) war service. But neither of those comments alienated Trump’s base – he’s maintained his seven point lead over ...
More News »