Holiday Virus

Having spent a fortnight on a northern Australia roadtrip, involving numerous hearty meals, it was ideal to catch a virus on my return to Perth that removed my appetite. A whole week during which I lost interest in food was perfect for starving me back to my normal weight. This fortuitous timing gives me an idea for a business opportunity. How about a booth at airports at which gluttonous travellers on their return can infect themselves with this virus, renamed the "Diet Bug"?