Houston confirms first swine flu cases; 4 schools closed

Get details on the newly-confirmed cases here.

Mexican toddler, first U.S. fatality, spent time at the Houston Galleria the day before he fell ill.

Fort Worth closes entire school district

Mexico hopeful worst is over as number of cases levels off

Seattle-area pediatrician and entire family ill with probable swine flu

U.S. vaccines primarily manufactured overseas; capacity shared with Europe -- "All the manufacturers in the world could probably only produce enough vaccine for 10 to 20 percent of the global population"