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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.

Mysuru, Mar 24:m who returned from foreign travel and flouted home quarantine guidelines has been arrested in Mysuru on Monday. 

The man, who returned from Australia, had a seal on his hand but was roaming around the city. 

According to police, he was supposed to be under home quarantine till April 6. V V Puram Police took him into custody.

Mangaluru, Apr 6: Three more COVID-19 positive cases in the Dakshina Kannada district have been recovered and discharged on Monday.

All three are Kasargod residents and were being treated in the city’s Wenlock hospital.

A 22-year-old man Bhatkal was discharged on Monday after recovering fully from the infection.

A total of 12 cases have been found COVID-19 positive in Mangaluru till now, said B Rupesh, Deputy Commissioner and District Magistrate's Office, Dakshina Kannada, on Monday.

"So far, 4 positive cases have recovered in Mangaluru, of which 3 COVID-19 positive patients have recovered and have been discharged today," said Rupesh.

He further said, "A total of 12 positive cases have been reported in the city till now."

As per the latest update by the Ministry of Health and Family Welfare, the total number of confirmed cases in the country is 4281. 151 cases are from Karnataka.