When a new strain of bird flu cropped up in China last winter, the billion-dollar question was whether the deadly virus could transmit between people.
Now, Chinese scientists offer the first clear evidence that the bird flu is indeed contagious, although only slightly.
A father, who became sick in March, passed the H7N9 virus to his daughter, epidemiologists report Tuesday in BMJ, the British Medical Journal. But the risk of transmission is still quite low, they say. And at this point, the H7N9 virus still doesn't look like a threat to go global.
Since H7N9 first appeared in February, China has recorded 133 cases, and Taiwan one; 43 people have died from the virus.
Click "source" to read more.