Fears over swine flu threatened to knock a vulnerable global economy into deeper turmoil, hammering travel and tourism as nervous consumers and businesses delayed spending plans.

流感造成的恐慌可能让脆弱的全球经济陷入更严重的动荡，随着紧张万分的消费者和企业推迟支出计划，旅行和旅游也会受到打击。

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After the runways were closed for de-icing, the airport extended the length of time between flights for safety reasons, primarily because there was a knock-on effect of flights being delayed at other airports.

BBC: Heathrow cancels flights and transport is delayed by snow