Two SDPI workers get life imprisonment for murder of Muslim League activist

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, Jun 6: Karnataka registered 378 Covid-19 cases in the past 24 hours, breaching the 5,000-mark to settle at 5,213, said an official, here on Saturday. "New cases reported from Friday 5 p.m. to Saturday 6 p.m. is 378," said a health official.

Of the new cases, 333 are local returnees, comprising 88 per cent of the new infections. Returnees from Maharashtra accounted for 99 per cent new cases at 329.

Majority infections in Karnataka nowadays are returnees, mostly from the state''s northern neighbour. Only 27 new infections were contacts of earlier cases.

On Saturday, cases spiked in Udupi, Kalaburagi, Yadgir, Bengaluru Urban, Belagavi, Vijayapura, Davangere and Dakshina Kannada.

Udupi witnessed the highest number of cases (121), followed by Yadgir (103), Kalaburagi (69), Dakshina Kannada (24), Bengaluru Urban (18), Vijayapura and Davangere (6 each), Belagavi (5), Gadag (4), Mandya, Hassan, Dharwad and Haveri (3 each), Raichur, Chikkaballapura and Uttara Kannada (2 each) and Bidar, Tumkur, Kolar and Koppal (1 each).

Among the new cases, three patients from Bengaluru Urban are suffering from Influenza Like Illness (ILI) and another from Severe Acute Respiratory Infection (SARI).

There were seven cases with international travel history to United Arab Emirates (UAE) and one to Turkey.

Meanwhile, 280 people were discharged in the past 24 hours and two persons succumbed to the virus, one from Bidar and another from Vijayapura. Of all the cases, 3,184 are active, 1,968 discharged, 59 dead and 11 in the ICU.

In the past 24 hours, Karnataka tested 11,862 people, of which 11,431 reports returned negative. In total, 3.72 lakh samples have been tested so far, of which 3.61 lakh have returned negative.

Currently, Udupi is leading the state''s Covid-19 burden with 785 active cases, followed by Kalaburagi (448), Yadgir (407), Raichur (320) and Mandya (163) among others.

Bengaluru Urban has accounted for 13 deaths, followed by Kalaburagi (7), Bidar, Vijayapura, Davangere and Dakshina Kannada (6 each) and Chikkaballapura (3 each), among others.