There have been some useful advances in the search for a solution to the miseries of allergic reactions to our beloved pets. A recent Allergy Best Buys blog post  looked at the promising development of  a vaccine against dog allergies. And now scientists are using cutting-edge technology to make allergic reactions to cats a thing of the past. It has been known for some time that a single gene and its protein Fel D 1 are the primary cause of 90 per cent of cat allergies. Researchers have mostly focussed on ways to neutralise the effects of the protein. But scientists at...