标签：Inoculate - 英国华人论坛

Ever wonder why there’s a new flu vaccine every year? That’s because the flu virus mutates a little every year, in order to infect us better, and we have to come up with a new vaccine to keep ahead of the game. The virus keeps evolving so...英国华人论坛

Please feel free to publish this article and resource box in your ezine, newsletter, offline publication or website. A copy would be appreciated at [email protected]. Word count is 1100 including guidelines and resource box. Robert A. Kelly ©...英国华人论坛