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
why not call them terrorist or ban their organisation......applicable to minorities only?.......
Check who they are inspired from.....Ban them
Which school they studied....Close it....
Arrest their friends and relatives......
arrest all those who called on their mobiles....bla bla bla....as you do it against Muslims.....
SEnd them to Israel - their ancestors place
All the honest people of DK should start supporting the honest POLICE and honest authorities when we see these stupids try to disrupt the peaceful society...
Recognize the CULPRITS and Voice against such CULPRITS who try to destabilize our society.
b***ards!! give poison to them
dont let them roam in the country, they must be behind bar for lifetime so others also can learn from them.
everyone must be punished for their crime, still some bastards are hiding who killed kuttappa.
they are only good for these types of useless things..
Cut their hands and take to Singapore for treatment.... Naren will take care of them....
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