There might finally be hope for people who love cats but cannot have them because of allergies. A new study that is going to be published in the Journal of Allergy and Clinical Immunology says that scientists in Switzerland have developed a vaccine that can be given to cats that will stop them from producing the harmful proteins in cat fur and dander. These proteins trigger the reactive rush of histamines and ultimately cause the sneezing that people suffer. The vaccine called “Hypocat” neutralizes the protein. The vaccine will be available in three years, not soon enough.