A sneeze-free cat is being worked on by scientists, aimed at animal lovers that are allergic to cats. A Los Angeles company, Allerca, is promoting its plans to produce by 2007 the world's fisrt non allergenic cat using pateneted bio technology. The genetically modified cats will sell for US$3500 and allow "some of the millions of people allergic to cats to enjoy the love and companionship of a household pet without suffering from allergy symptoms" Allerca says this is the first of a planned series of "lifestyle" pets that it will develop over the next few years. The company hopes to sell 200,000 cats in the first year. New Scientist magazine recently reported that although it might be possible to create cats without the offending protein, blocking production of the many other proteins cats produce could damage the animal's health.