ÎçÒ¹¸£Àû1000¼¯ºÏ
People in the US passed swine flu to pigs nearly 400 times in 12 years
A particular strain of swine flu was first recorded in people in 2009. Since then, humans have passed the strain to pigs at least 370 times in the US
News
Advertisement
A particular strain of swine flu was first recorded in people in 2009. Since then, humans have passed the strain to pigs at least 370 times in the US
The search giant's much-hyped flu tracker has been way out on its predictions for years – raising concerns over our reliance on big data