TOKYO - The Japan Football Association (JFA) has pulled the plug on a scheduled tour of North America by the women's national side because of fears over swine flu. The JFA told Reuters on Wednesday that they had cancelled friendlies against the United States and Canada later this month and had informed officials in those countries of their decision. It is the first away trip to be called off by the JFA because of the new H1N1 virus. Japanese officials said they had yet to receive a reply over whether they will be asked to pay damages for breach of contract. Japan's women were scheduled to play the U.S. in Texas on May 20 before playing Canada in Toronto five days later. The World Health Organisation has confirmed over 4,000 infections of the new flu strain. The worst-hit region is North America, with 60 deaths. The U.S. alone has 2,600 cases.