Mexico fights swine flu with pandemic potential

A new swine flu strain that has killed as many as 68 people and sickened more than 1,000 across Mexico has "pandemic potential," the World Health Organization chief said , and it may be too late to contain the sudden outbreak. This swine flu and regular flu can have similar symptoms — mostly fever, cough and sore throat, though some of the U.S. victims who recovered also experienced vomiting and diarrhea. But unlike with regular flu, humans don't have natural immunity to a virus that includes animal genes — and new vaccines can take months to bring into use. Read more>>