A new research has revealed the origins of swine flu after scientists discovered that the transmission of the H1N1 influenza A virus to humans occurred several months before recognition of the existing outbreak.
In the new research, an international team, led by
According to the scientists, the virus was actually derived from several viruses circulating in swine, and that the initial transmission to humans occurred several months before recognition of the outbreak.
Lead scientist Dr Oliver Pybus said, "Using computational methods, developed over the last ten years at
The research highlights the need for systematic surveillance of influenza in swine, and provides evidence that new genetic elements in swine can result in the emergence of viruses with pandemic potential in humans.
The scientists concluded that "despite widespread influenza surveillance in humans, the lack of systematic swine surveillance allowed for undetected persistence and evolution of this potentially pandemic strain for many years."The team included scientists from
Source: NDTV.com
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