WASHINGTON (Reuters) - The United States now has 642 cases of the new H1N1 flu, with two deaths, the Centers for Disease Control and Prevention reported.
CDC officials have said they expect the new swine flu to spread to all 50 states, to cause severe disease and some deaths, although most cases have been mild.
Mexico has confirmed 42 deaths and said it was impossible to get samples from about 70 more people who died of flu-like illness recently. Globally, more than 1,600 cases have been reported in 23 countries.
Reporting by Maggie Fox, Editing by Sandra Maler