Latest World Health Organization figures reveal that the number of swine flu deaths reported worldwide has jumped by more than 700 in a week. More than 5,700 swine flu deaths were reported by 25 October, compared to nearly 5,000 the week before. The biggest rise was in the Americas where 4,175 deaths have been reported, up 636 from the week before. Meanwhile, Ukraine has shut all schools and banned public meetings for three weeks after its first swine flu death. Statistics showed fatal cases in Europe climbed to at least 281, while those in Asia-Pacific rose to 1,070. In a separate statement, the WHO said that experts meeting this week had concluded that a single dose of swine flu vaccine was sufficient to immunise adults and children over 10. <br/>