NASHVILLE, TENN. (WSMV) - A new virus with potential to cause a future pandemic has been discovered in China.

In a newly released study, Chinese researchers said they discovered a new type of swine flu known as the G4 virus.

Researchers say it descended from the H1N1 swine flu, which caused a global pandemic in 2009.

The study says that G4 shows “all the essential hallmarks of a candidate pandemic virus.” Researchers found G4 during a seven-year pig surveillance program and believe it has already infected some people in China.

As of right now it’s unclear if there could be human-to-human transmission. The study calls for stronger surveillance on the pig population to try keeping the virus under control. is now with you on the go! Get the latest news updates and video, 4WARN weather forecast, weather radar, special investigative reports, sports headlines and much more from News4 Nashville.

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