Karnataka CM Siddaramaiah's son Rakesh, 39, dies in Belgium hospital

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, May 16: Close on the heels of six Covid-19 cases being detected in a little over 24 hours, Udupi recorded its first death of a Covid-19 patient. The victim is a 54-year-old man from Mumbai, who died due to a heart attack on Thursday. His reports came back on Saturday, and confirmed that he had Covid-19. The Udupi district administration has arranged to carry out his last rites as per government designated guidelines for Covid-19 victims.

A medical bulletin issued by the superintendent of Kasturba Hospital, Manipal, stated that the patient was admitted due to a heart-related issue on May 13.

Some members on the team that treated the patient have been quarantined. The hospital’s emergency department will operate as usual, and the outpatient department will operate as usual from 8.30am to 1pm, following government guidelines, the bulletin said. Deputy commissioner G Jagadeesha said that since the patient was from Mumbai, the authorities collected his swab sample for testing, as a precautionary measure.

The man suffered from chest pain, and was initially taken to the taluk hospital at Kundapur from where he was shifted to Kasturba Hospital, due to the seriousness of his condition. The doctors operated on him on May 13, and he suffered a severe heart attack on May 14 and died, the DC said. “Three hospital staff without PPE kits, who attended to the patient, have been quarantined,” the DC said, adding that the operating doctors and nurses had worn PPE kits.

In addition, 5 others who travelled with the person from Mumbai and 57 people with him at the Kundapur isolation centre, have been designated as primary contacts, and 38 others as secondary contacts, and quarantined. The staff at Kundapur taluk hospital too had taken precautions in handling the patient, the DC said. Udupi presently has six active cases, including a 1-year-old child and 5 others, all of whom returned from Dubai on May 12.