U.S. Steps Up Alert as More Swine Flu Is Found

The United States declared a "public health emergency" yesterday as countries from New Zealand to Scotland investigated suspected cases of illness that they feared might be a strain of swine flu that has been identified in Mexico, the United States and Canada.
U.S. Steps Up Alert as More Swine Flu Is Found

What You Need to Know MAP: Cases in U.S.
Fears of Pandemic Grow Full Coverage