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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.

Karwar, May 29: A five-month-old baby girl was discharged from Kasturba Institute of Medical Sciences (KIIMS), Mangaluru after her successful recovery from Covid-19 on Friday.

The baby was admitted to a hospital in Mangaluru in the third week of April for the treatment of epilepsy and on May 8, the baby, her parents tested positive for Covid-19 and they were also admitted. It is said that they contracted the virus from their 18-year-old relative.

Although the parents were discharged from KIMS on May 23, since the baby had epilepsy, doctors continued the treatment for 19 days.

Mangaluru, May 15: Dakshina Kannada saw a record spike in the number of fresh COVID-19 cases today, which triggered panic among the people of the district, which is currently under orange zone.   

According to the mid-day bulletin of the Department of Health and Family Welfare, as many as 16 people from Dakshina Kannada tested positive for the covid-19. 

Among them 15 are the Gulf returnees who were brought by an Air India Express special flight from Dubai to Mangaluru International Airport on May 12. 

As many as 179 repatriates had landed at Mangaluru Airport. Among them 125 are quarantined in Dakshina Kannada, 49 in Udupi and five in Uttara Kannada districts.  

Meanwhile, a 68-year-old woman from Surathkal area in Mangaluru, who is suffering from Severe Acute Respiratory Infection (SARI) was also tested covid-19 positive.

This is the highest number of cases reported in a single day since first case registered in the district on March 22 when Dubai-bound youth from Bhatkal was tested positive. 

With this the total number of covid-19 cases in the district mounted to 50 including five deaths. Many of them have returned home after recovery.

3 members of a family test positive

According to Deputy Commissioner Sindhu B Rupesh, three members of a same family are among 15 gulf returnees who are tested positive.  They are a 45-year-old man, his 33-year-old wife and their 6-year-old child. 

Six among those who tested positive today are above 60 years of age, said the deputy commissioner.