G4 Swine Flu (G4 EA H1N1)

G4 Swine Flu (G4 EA H1N1)

G4 Flu Virus: Scientists report that the new strain (G4) came from the H1N1 strain that caused the 2009 swine flu pandemic.
The study was published Monday in the US Science Journal Proceedings of the National Academy of Sciences (PANS)
In new research, scientists from China - the world's most populated pigs - have identified that "recently emerged" strain of influenza virus that infects Chinese pigs and has the potential to trigger the pandemic. There are genes similar to the virus that caused the 2009 flu pandemic of the swine flu strain known as the G4. Scientists also say that it has the potential to transform into a dangerous virus like COVID-19. 

Scientists have identified the virus through surveillance of influenza viruses in pigs they carried from 2011 to 2018 in ten provinces in China.

During this time, more than 29,000 nasal swabs were collected from slaughtered pigs, and more than 1,000 swabs or lung tissues were collected from cattle with signs of respiratory disease.

In these samples, researchers isolated 179 swine flu viruses, most of them from the newly identified G4 strain.

They found that the G4 strain could bind to human-type receptors (the SARS-CoV-2 virus binds to ACE2 receptors in humans), able to replicate itself in human airway epithelial cells, and has shown to be effective in ferrets infectivity and aerosol transmission. The some of workers in cattle also infected with this virus.


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