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
mande ijjandina marler naklu.... this cows issue came into highlights sine last 10-12 years, where were this RSS chaddis before that.... they dont have problem with eating cow, this people using cow as political issue for their personal gain....
If the cow is god y dont cow punish thm who done this
if we say in simple word if anyone brith and death he is not god and in this world no there who dont hve death everyone hve to face the death how come they are god even simple logic this ppl cant understand
Legalize beef everything is gonna right. Dakshina kannada and udipi police dpt. fit for perform duty as gowrakshak. Police from Goa and other states ruled by bjp are deprived from this opportunity.
It happens only in India......
In Europe, America, China, Japan, par Eastern countries.....millions of them used for lunch and dinner....don't you think they too are Gods for you....why don't you go and protest in front of United Nation to enact a law to stop it.....it require a lot of guts which you don't have it and all balls too....
India will not develop, it will remain like this forever....small thinking mind and heart....
Believe me it is not a fucking God at all.....
brutal assaults required on cattle thieves.
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