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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.

Bengaluru, Jul 8: Karnataka has drafted 1,246 government employees into the crucial task of contact tracing to fight the coronavirus pandemic, and they have been warned of action if they refuse to work.

These are Group A, B and C employees from various departments who have been asked to report to senior IAS officer V Manjula, who heads a task force on Covid-19 contact tracing.

In an order, Chief Secretary TM Vijay Bhaskar on Tuesday said additional human resources were required to strengthen contact tracing, which is “a very important part” of controlling the spread of Covid-19.

Thiruvanathapuram, Mar 27: The state is heading for its worst ever crisis with coronavirus cases increasing rapidly and Kasargod district the worst hit. On Friday alone 39 positive cases were reported in the state of which 34 are from Kasargod.

Chief minister Pinarayi Vijayan said the situation is grave and Kasargod has been the worst hit. More than the positive cases reported in the district, the worrying factor is that many people have come into contact with these positive cases.

The chief minister warned that the government will be forced to declare the names of the people who are defying the quarantine guidelines in the district. More people have been put under risk in the district and the district administration is much concerned since the results of 215 samples are yet to come.

There is no other way but to tighten the restrictions imposed in the district against the people coming out of their houses. The government has decided to provide more facilities to the hospitals in Kasargod and Kannur to meet an emergency.

The medical college hospital in Kannur will be converted into a coronavirus hospital with 200 bed strength. Steps have been taken to equip the medical college hospital with more facilities. The Central University at kasargood will be converted into as a temporary coronavirus treatment centre. 

The state has also requested permission from ICMR to begin the testing facility here, said the chief minister.

The total number of positive cases reported in the state have now become 176 of which 12 have been discharged after testing negative. At present 164 positive people are admitted in several hospitals of the state.

On Friday of the 39 positive cases, two are from Kannur and one each from Thrissur, Kollam and Kozhikode. With this all the districts in the state have been now affected with coronavirus.