Washington, Jun 30: Researchers in China have discovered a new type of swine flu that is capable of triggering a pandemic, according to a study published Monday in the US science journal PNAS.
Named G4, it is genetically descended from the H1N1 strain that caused a pandemic in 2009.
It possesses "all the essential hallmarks of being highly adapted to infect humans," say the authors, scientists at Chinese universities and China's Center for Disease Control and Prevention.
The researchers then carried out various experiments including on ferrets, which are widely used in flu studies because they experience similar symptoms to humans -- principally fever, coughing and sneezing.
G4 was observed to be highly infectious, replicating in human cells and causing more serious symptoms in ferrets than other viruses.
Tests also showed that any immunity humans gain from exposure to seasonal flu does not provide protection from G4.
According to blood tests which showed up antibodies created by exposure to the virus, 10.4 percent of swine workers had already been infected.
The tests showed that as many as 4.4 percent of the general population also appeared to have been exposed.
The virus has therefore already passed from animals to humans but there is no evidence yet that it can be passed from human to human -- the scientists' main worry.
"It is of concern that human infection of G4 virus will further human adaptation and increase the risk of a human pandemic," the researchers wrote.
The authors called for urgent measures to monitor people working with pigs.
"The work comes as a salutary reminder that we are constantly at risk of new emergence of zoonotic pathogens and that farmed animals, with which humans have greater contact than with wildlife, may act as the source for important pandemic viruses," said James Wood, head of the department of veterinary medicine at Cambridge University.
A zoonotic infection is caused by a pathogen that has jumped from a non-human animal into a human.
Comments
Rahim uchil will angry coz Zakir hussain eating meat and fish. How the seer of matt allowes him to enter the temple.
@ Mr. Truth, Persons link your spoiling real meaning of Hinduism. You are so filthy by your mind
Why mutt entertaining these kind of programs. There are hindu people who can conduct concerts
I am a great fan of you sir. Eagerly waiting for the moment. Hope nobody make unwanted issues there
True. Abu said right thing. Police and organisers should ensure his safety before bringing him
Art has no religion. It needed pure heart to enjoy. Waiting for the concert
Is there anybody to protest against this. I'll join with you. I will provide you some equipments to distract. Inform me ASP
Ahamd Khan, a Muslim folk singer was Murdered by temple Pirest RAMESH SUTHAR in Dantal Village of Rajasthan. The priest Ramesh accused Ahmed Khan of not singing well in the temple, and (Ramesh) failed to possess his god and harness supernatural power.
Hope Ustad Zakir Hussain will not meat the fate of Ahmed Khan, if Pejawar Seer or his devotees fail to impress their diety in Udupi for the fault of Zakir's finger on Tabala.
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