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
"If you cant Convince them, then confuse them."
This is what these Yogi, Yedyurappa and Shoba doing nowadays. they cant convince people on their good works to society so plan B is to confuse the people by shouting day and night blaming and hate speech. I wish the public understood these peoples dirty minds and thrown them to a planet where they can find their match. And never to return so we can live a happy life.
Ms Shoba,
You want to be remineded that how our PM had not only misused but also made fun of government machinaries during gujarat election rallies. Do you have a little shame on talking on this issue.
This HARAKU BAI Shobakka a perfect ally of KOLAKU BAI Eiswarappa, ready to set Karnataka on Fire for Chair. What a dirty politics!!
The cow always looking another cows -------- and laugh i/o of covering own ----- . This lady with same policy
no interest about development and good governance only stick with her nagpur HQ command for communal clash.
SHOBAKKA WHAT ABOUT THE FEKU'S INTERNATIONAL TOUR MONEY
Dear Sobakka,Reimburse money spent on PARIVARTAN YATRA and Feku's rallies.
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