Worobey said the virus likely spreads among the cows due to contact with milking machines, trucks or the shoes of farm workers. It then moves from cow to cow before making its way back to birds. Worobey said birds tested on the same farms as sick cows have a form of the virus with “clear...

The United States plans new rules for the movement of dairy cows between states because of concerns about a bird flu outbreak.  出于对禽流感爆发的担忧，美国计划对各州之间奶牛的流动制定新规则。 The virus is called Type A H5N1. It has been found in over 30 different groups of cows across eight states.  该病毒被称为 A 型 H5N1。 已在 8 个州的...

Less than half of Americans say they are getting enough sleep, according to a recent opinion study by the Gallup organization.  盖洛普组织最近的一项民意研究显示，不到一半的美国人表示他们睡眠充足。 The poll found that 57 percent of Americans say they would feel better if they could get more sleep. Only 42 percent say they are...