Repeat: At least 60 per cent of asthma is triggered by allergens, including house dust mite, pollen, animal dander, mould and foods, yet only a third of those surveyed had been allergy tested.
At least 60 per cent of asthma is triggered by allergens, including house dust mite, pollen, animal dander, mould and foods, yet only a third of those surveyed had been allergy tested.