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Bengaluru, Mar 21: Three new COVID-19 cases have been confirmed in Karnataka, taking the total number of infections to 18, the state government said on Saturday.

Earlier in the day, Health Minister B Sriramulu giving details about one positive case said, a 32-year old person from Gauribidanur in Chikkaballapura district, who has returned from Mecca has been confirmed for coronavirus infection.

The person has been admitted in a designated isolated hospital for treatment, he said in a tweet.

Details regarding the other two patients are still awaited.

The mid-day situation update by the government also said a circular has been issued to Health and Family Welfare Department officials and staff at all levels to work even on Sundays and general holidays without fail till March 31 in view of COVID-19.

A total of 48 government hospitals and 35 private hospitals have been identified as first respondent hospitals for the case management of COVID-19 cases, it said.

Mental health counselling is being done for positive COVID-19 cases and suspects in the identified hospitals and quarantined persons at home and hospital.

A total of 4,390 counselling sessions have been held till date, it added.

Sriramulu in a tweet, also said the government as a precautionary measure is planning to install thermal test CC cameras at government offices and certain important places.

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.

Udupi, June 19: The coronavirus has claimed second life in the coastal district of Udupi. The victim is a 54-year-old person who had returned from Mumbai.

A resident of Tekkatte in Kundapur taluk of Udupi district, the person was among four travellers that returned together from Maharashtra on June 18. 

Even though all four were asymptomatic they were home quarantined separately as per norms. According to sources, all of a sudden he collapsed at home and died. His throat swabs tested positive for the coronavirus, according to deputy commissioner G Jagadish.