G4 flu virus

IN NEWS:

• In a new research, scientists from China have identified a “recently emerged” strain of influenza virus that is infecting Chinese pigs and that has the potential of triggering a pandemic.
• Named G4, the swine flu strain has genes similar to those in the virus that caused the 2009 flu pandemic.
• The scientists report that the new strain (G4) has descended from the H1N1 strain that was responsible for the 2009 flu pandemic.
• China has the largest population of pigs in the world.

PRELIMS QUESTION:

Q. G4 Flu virus, a virus with potential to become a pandemic, was discovered recently in:

1. China
2. USA
3. Poland
4. Nigeria

Answer to Prelims question