Hindustan a country of Hindus but it doesn't exclude others: RSS chief

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 24: Eight new positive coronavirus cases were confirmed in Karnataka on Tuesday, taking the tally to 41 in the state, the health department said.

"Till date 41 COVID-19 positive cases have been confirmed in the state which includes one death and 3 discharged," the department said.

According the department bulletin, 37 positive patients are in isolation at designated hospitals and their condition is stable.

Of the 41 confirmed cases, six are transit passengers hailing from Kerala who have landed in airports and being treated in Karnataka.

Among the eight passengers confirmed on Tuesday also three men and a woman are from Kasaragod in Kerala with a history of travel to Dubai and Saudi Arabia respectively.

All the four had landed in Mangaluru, where they are being treated.

The others are: two men, aged 40 and 65, from Uttara Kannada district in Karnataka with travel history to Dubai;

a 56-year-old woman, a resident of Chikkaballapura district, who is a family member and co-passenger of person who tested postive with travel history to Mecca, and a 56-year-old woman, resident of Bengaluru, a contact of another person who has tested positive for the virus,

Among the 41 cases, 24 has been reported from Bengaluru, five from Dakshina Kannada, three each from Kalaburgai and Chikkaballapura, two each from Mysuru and Uttara Kannada, and one each from Kodagu and Dharwad.

All the three discharged patients are from Bengaluru, while one death was reported in Kalaburagi earlier this month, which was the country's first COVID-19 related death.