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
These three people should be treated in the same way as Mr tejpal has been treated in Goa. They should not be able to come out for long time. This can be possible only if our MP will not intevene.
What a shame.. openly he is abusing beary, and jumped at that girl in front of police force. Dumm injandina police aye, musunt dharth paadodu ithnd, haakina ayena, . DK POLICE pokkelana, .. Hope some day people like MR. ANNAMALAI wil come to iur city and take some action againts such dhanda pinda mooji kaas dha bele ijandima goondas.. Thekk nikilna moneg, Naachige ijjandina Jobless luchas.. Yedde aapuji ya nakul, nikleng popi kaala ya.. Until and unless POLICE FORCE doesnt take any action, mukul sudharujeer.. .. Nikulna moneg chappal podi manpodu ya... i wonder these bele ijjandina people, parre olpadh kaas ya nikleg, pardh podhu yer yereg haakunu.. Gumpu gumpu aadh podhu haakunu, oriye oriye popujjer. . Hope 1 day public will unite wen such incident occur in future, and these goons a lesson..
Add new comment