U T Ifthikar is DK dist president of KPCC’s Graduates and Teachers Cell

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, Mar 9: Karnataka government has ordered holidays for children in lower and upper kindergarten classes in Bengaluru, in the wake of coronavirus outbreak and with positive cases being reported from states in its neighbourhood.

"Further to the advice received from the Health Commissioner, holidays have been declared for Lower and Upper Kindergarten classes in Bengaluru North, South and Rural districts due to coronavirus, " Karnataka Minister for Primary and Secondary Education S Suresh Kumar said on Sunday.

According to official estimates, no positive cases of coronavirus have been reported from Karnataka till now.

The state has strengthened all surveillance and containment measures against the possible spread of disease.

Till Sunday, 890 persons have been identified for observation including persons who have travelled to COVID-19 affected countries and contacts of COVID-19 positive cases.

Six persons have been admitted to selected isolation hospitals.

According to official estimates, till date 87,066 passengers have been screened at airports in Karnataka.

The number of COVID-19 cases in India climbed to 39 on Sunday with five people in Kerala testing positive for coronavirus. The deadly virus has caused the deaths of over 3300 people globally.

Mangaluru, Jan 24: Aditya Rao, who was arrested for planting Improvised explosive device (IED) at Mangaluru airport on January 20, was brought to the airport on Friday for recreation of the crime scene as part of the investigation process.

Yesterday, one more case was registered against Rao in connection with a hoax call to the terminal manager of the airport on January 20, police said.

"One more case has been registered against Aditya Rao at Bajpe Police station for a hoax call to the terminal manager of Mangaluru International Airport on January 20," said PS Harsha, Mangalore Commissioner of Police on Thursday.

Earlier, Harsha informed that Rao, who surrendered before the Bengaluru Police, is now in the custody of Mangaluru Police.

"Our investigation team arrested Aditya Rao in Bengaluru in connection with the planting of an explosive device at Mangaluru airport. We produced the accused before Bengaluru's first JMFC court and the court issued a transit warrant," Harsha said.

"We have brought him to Mangaluru from Bengaluru and now the accused is in our custody. Our investigation team will interrogate him. We will investigate all aspects. He will be produced before Mangaluru 6th JMFC Court," he added.

Rao hails from Udupi and has engineering and MBA degrees.

According to the police, the IED was recovered from a bag at the Mangaluru airport. It was later defused in an open field by the personnel of the bomb disposal squad.