Can you imagine how much money would be lost if all economic activity was halted in Mexico City? Mexico City is home to some 20 million people, and right now, it's the epicenter of a swine flu outbreak that has countries all over the world ready to cut off access to the country and its pork industry. At least 1,614 people in Mexico have been infected by the virus, and an estimated 103 have died, though at last count only 20 of them have been confirmed swine-flu deaths. But the Mexican government is taking no chances, and schools are closed until May 6, and even the bars and night clubs in the popular resort town of Puerto Vallarta have been ordered to close. Mexico City might even halt all economic activity of the outbreak is not contained. The airline and pork industries have been hit pretty hard, too, so traders and investors alike might want to keep an eye on these two industries as this story develops.