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
Shobha Kandodi,
I am not a Hindu but I can assure that the temples of Karnataka are much safer than Pakistan.
Modi belongs to Chaddi group. If he is really thretened why Shoba did not sugest Chaddiwlas boss Bhagawat to send his army which he claim to be far superior to our National Army.
Shoabha akka.. I guess you are a big threat to his life.. may be you are planning to become next PM..
This krishna mutt is safe for each and everyone.. Such a peacefull temple it is..
Good that he was not paid a visit. Or else you would have sent your goons and made it look like some terrorists entered from Arabian sea :D or from kaup beach :D
Our Temple is in NAMMA HEMMEYA UDUPI, not in KASHMIR where safety is a concern with few number of GOONDAS.
Once again dont make such statements highlighting safety concerns.. Our PM was in UDUPI, India.
She is a Joker in Beti Jalawo/rape karo Party. She never uttered a truth in her life. She has PhD degree from Nappur University in telling lie and fooling people. she is a waste to Karnataka and people should kick her out to Andaman.
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