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
This attack on Karnataka by BJP. Why did not they raid houses of BJP leaders who have become rich after BJP came to power. Reddy brothers are roaming freely and had lavesh wedding of their daughter. IT department are sleeping
Timing is good!!. Each one repeats same in cycle and then they may stop doing corruption. But Indian political population is a strange one and may start bribing each other! Congress also did all kind of tactics! Timing of investigation of corrupt DMK - daughter!
How can congress explain recovery of 10.5 crores cash from the minister's residence?Is it not embarrassing for congress leaders who called the raid witch - hunt?
What does BJP say about corruption of their own leaders. How many raids were given on the corrupt leaders of BJP. There are not hundred but thousand cases of corruption of BJP leaders. Recently in Chhatishgarh, one minister Brijmohan Aggarwal has encroached the government land. A few days ago Chief of Kerala BJP was caught for taking bribe of Rs 6 crores. After demonetization maximum black money was recovered from these BJP leaders. Before demonetization, dubious land deals were executed with their black money as they know fully that demonetization was to be declared by their party.. Black money was recovered from the BJP leader in Punjab as well from Madhya Pradesh leader. Who is funding Amit Shah who is roaming using chartered planes from one place t0 another place. What were the sources of funds during elections either for the Centre or for the states. Admitted Congress is corrupt but BJP is the most corrupt party in India.Wherefrom they got 15 crores to purchase MLAs.
All corrupt politicians are the feathers of the same bird. All are corrupt whether in the ruling party or in the opposition. Some of them are pro industrial and getting unaccountable money to be spent on their rival parties to let down. If any leader is corrupt and facing trial in the court, they either try to purchase the sitting judges or transfer them on the name of promotion. These tactics have been used by Modi Government in Gujarat to have clean chits in Godhara riots.The enquiry commission was appointed to enquire about who were behind the killings of innocent Sikhs, one Mishra was purchased by the Congress party and he was taken in Rajya Sabha.These commission heads are corrupt and working as per directions of the ruling party. How one can get justice. In India justice is denied to poor, downtrodden and minorities. These political parties have cleverly expert to change the facts into lies. They are expert to purchase and threaten others who are disagreed with them
How can there be black money? Demonetisation was supposed to eradicate it.
He's questioning the time, he's not questioning all that money that's been
seized!
"Mr. Shivakumar's mother hit out at Mr. Siddaramaiah accusing him of not
protecting her son."... ideal mother
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