Viral infection in children can make routine asthma therapies fail

Asthma is a chronic disease affecting 235 million people worldwide and affecting 8.5% of all Canadians. The common symptoms include chest tightness, wheezing, coughing, and shortness of breath that can be sudden. Currently asthma is the most common childhood chronic disease, affecting 13% of Canadian children and accounting for 50% of all emergency department visits…