医疗当局对其病因及有多致命都还不怎么了解。
Medical authorities were baffled, both as to its causes and its virulence.
布什当局一直以来力推高减免额保险方案作为控制医疗费用的最佳路径，并通过对保健储蓄帐户（HSV）实行免税来鼓励这一方案。
The Bush administration has been pushing high-deductible plans as the best route to controlling health costs and has encouraged them, with tax-breaks for health-saving accounts.
主管当局应通过一个预先安排的机制，保证船舶在海上能够每天24小时均可得到通过无线电或卫星通讯提供的医疗指导，包括专家指导。
The competent authority shall ensure by a prearranged system that medical advice by radio or satellite communication to ships at sea, including specialist advice, is available 24 hours a day;
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