Last year, WHO's Member States set a goal of 60% coverage for those in these high risk groups, and 75% coverage by 2010.

去年，世卫组织各会员国提出了使这些高危人群中的覆盖面达到60%并到2010年达到75%的目标。

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Control measures are underway including contact tracing, chemoprophylaxis of household contacts, and immunization of high risk groups.

正在采取控制措施，包括接触者追踪、家庭接触者化学预防和高危群体免疫接种。

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In many countries the epidemic is still in its early stages-largely contained within high risk groups - providing a window of opportunity to contain its spread.

在许多国家，这种疫病仍然处于早期阶段(主要存在于高危人群中)，因此具有遏制其传播的机会。

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It would then be offered to high risk groups across the island who already receive the seasonal flu vaccine.

BBC: Island swine flu tests stepped up

The report is vague about funding and needs to be more specific about who the 'high risk groups' are.

BBC: TB is a respiratory disease

The Chief Medical Officer Dr Ruth Hussey said she wanted to encourage as many people as possible in high risk groups to get vaccinated.

BBC: Flu jab given at some pharmacies in Wales for first time