SARS (Severe Acute Respiratory Syndrome) has shocked the world. Most cases are in Asia, where the disease is thought to have originated, but it's also a very real presence in Canada. Toronto has had the world's fourth-largest outbreak, and is the only place outside of Asia where people have died. According to the Toronto Star newspaper, 7,000 people are currently in quarantine in the city, and health officials there expect the numbers to grow.