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
Urgently he should visit a psychiatrist!!!! friends would you like to suggest any doctor in mangalore????
Even at this age Yeddi did not lose the sense of humour!
No doubt.. this time BJP will win and yeddy will be our CM.. Jai yeddy. Jai Bharat
BJP is the eonly one party in INDIA taking care of Muslim community. A small list as follow Beef Ban;Head Scarf ban; Objection on prayer call;Objection on religious teaching Madrasa now the latest with TAJ MAHAL.
Since bjp and their leaders are supporting from all corner with Muslim community then how the Muslims go against bjp. for Yeddi and Shobha they will support 100%
I am a muslim, and do not support BJP or yedyurappa
Modi wave we cant see not even in north states. In karnataka congress will win.
Yeddurappa proving he is shameless creature.. How can he say that.. He and his party all against Muslims and still telling that they are in good terms
Yeddy cant even dream of that.
Add new comment