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
Did India produce anything before 2014, no chance we imported everything to sustain I guess
And everything happened in last 4 years. For example, today our steel production is 100 MT/year, even in 2013-14 it was 81 MT/year... BTW, we are number 3 in steel production, not number 2.
You also missed one item -- no 1 in Faking by PM
Under Modi unprecedented rise of India----Made in India
World 2nd Largest steel producer
Worlds 2nd largest Mobile Phone producer
Worlds 3rd largest Electricity Producer
Worlds 4 largest Automobile Producer Con
gress is weeping because of the success
CONGRESS be care full As elections time is just 8 hours , all police controls from central, and BJP contrles EVMS as they did in UP, so with that kind of winning by manuplation is to be watched out carefully with Cameras installed at necessary or on whole locations focussing the EV machines.
BSY dont have guts. Barking Dog Seldom Bites
Siddu accepted challenge.. Now his turn
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