Beijing: A new flu virus strain, identified among pigs in China, is becoming prevalent among workers in the swine industry, according to a study which says the pathogen has "all the essential hallmarks of a candidate pandemic virus."
The study, published in the journal PNAS, is based on a surveillance of pigs in China from 2011 to 2018, and found that the influenza virus strain, with genetic material termed as G4 genotype, has become predominant in swine populations since 2016.
According to the scientists, including those from the Chinese Center for Disease Control and Prevention, these G4 viruses bind to receptor molecules in human cells, and can replicate in the outer layer of the respiratory system.
They demonstrated that the newly identified virus can efficiently infect ferrets via aerosol transmission, causing severe clinical symptoms in them like sneezing, wheezing, coughing, and a mean maximum weight loss ranging from 7.3 to 9.8 per cent of the mammals' body mass.
The study also noted that humans are not protected from the G4 virus by the immunity offered by other human influenza vaccine strains, indicating that there is no preexisting population immunity to the virus.
Blood sample analysis of workers in the swine industry indicated that nearly 10.4 per cent (35/338) of them were positive for the G4 flu virus.
Participants between 18 and 35 years of age had about 20 per cent positive rates of the virus in their blood, according to the study, indicating that the predominant G4 strain has acquired increased human infectivity.
"Such infectivity greatly enhances the opportunity for virus adaptation in humans and raises concerns for the possible generation of pandemic viruses," the scientists wrote in the study.
They said the newly identified virus is a growing problem in pig farms, adding that the widespread circulation of G4 viruses in pigs "inevitably increases their exposure to humans."
The scientists said two recent cases of G4 virus infection, reported in 2016 and 2019, were of a 46- and a nine-year-old, respectively.
According to the study, the two patients had neighbours who reared pigs, suggesting that G4 virus "could transmit from swine to human, and lead to severe infection and even death."
"Thus, it is necessary to strengthen the surveillance effort of G4 EA viruses among swine and human populations," the researchers wrote in the study.
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Ballari: Former minister B Sriramulu and Gangavathi MLA Gali Janardhana Reddy addressed a joint press conference on Friday, a day after a violent clash broke out between rival Reddy groups over the installation of banners ahead of the Valmiki statue unveiling programme in the city.
Speaking to reporters, Sriramulu said the death of Rajasekhar Reddy, who was killed by a gunshot during the clash, was painful. He said he and his party would stand by the victim’s family and extend support to them. Alleging that Ballari MLA Nara Bharath Reddy was responsible for the incident, Sriramulu demanded legal action against him and called for a thorough probe to establish whose bullet caused Rajasekhar Reddy’s death.
Sriramulu further alleged that the clash was premeditated, claiming that a group had come near their residence with petrol-filled beer bottles and stones, allegedly with the intention of attacking them. He also alleged that there was an attempt to assault Janardhana Reddy.
Janardhana Reddy, addressing the media, said the incident had made him fear for his life. He alleged that there was an attempt to kill him and held Bharath Reddy responsible for the violence. Former minister Somasekhar Reddy, BJP Ballari district leaders and party workers were also present at the press meet.
The clash occurred on Thursday night in the Havambhavi area when rival groups confronted each other over putting up banners for the Valmiki statue unveiling scheduled for January 3. During the violence, a Congress worker was shot dead. Police have registered four separate cases in connection with the incident, including one taken up suo motu.
Responding to the allegations, Ballari MLA Bharath Reddy said the party was mourning the loss of its worker, Rajasekhar Reddy, whom he described as a close associate. He accused Janardhana Reddy of trying to divert attention from illegal mining issues and said the death had cast a shadow over the planned celebrations. He announced that the Valmiki statue unveiling programme had been postponed due to the prevailing atmosphere of grief.
Meanwhile, Ballari Rural MLA B Nagendra confirmed that the statue unveiling event had been temporarily deferred following the clash and on the advice of the Chief Minister. He said the programme would be held on a later date under the leadership of the Chief Minister and senior ministers. Nagendra also criticised Janardhana Reddy, saying there was no place for what he described as a “Republic of Ballari” mindset under the present administration, and asserted that the government would not allow any form of intimidation or lawlessness.
