If you frequently find yourself covered in mosquito bites, while others escape without so much as an itch, you can blame your genes. 如果你发现蚊子特别喜欢叮你，而其他人都安然无恙，这其实与你的基因有关。 For British...
Mosquitoes, Not Birds, Made West Nile National In 1999 West Nile virus infected its first American, in New York. By 2004, the disease had spread across the country. Researchers speculated that, for the disease to spread so far so quickly, birds must...
