A new study reveals that the number of asthma patients who are also allergic to cats has more than doubled over the last two decades.

The researchers added that around 60 to 85 percent of asthma patients carry at least one allergy with ragweed, ryegrass and fungus allergies being the most common.
“From 1976 to 1994, positive allergy skin tests in people with asthma have increased significantly. Not only have we found the number of asthma sufferers allergic to cats has more than doubled, but those with asthma are also 32 percent more likely to be allergic to cats than those without asthma”, Dr Bielory said.
Source-Medindia