This can relate to the prevalence of asthma itself or the prevalence or severity of asthma exacerbations.
Each patient has a history of acute exacerbations that often lead to hospital admittance.
These data suggest a novel use for type I interferons in the treatment or prevention of virus-induced asthma exacerbations.
Luo, F., et al. "Prospective Longitudinal Study of Children with Tic Disorders and/or Obsessive-Compulsive Disorder: Relationship of Symptom Exacerbations to Newly Acquired Streptococcal Infections."
It is usually of an intensely sharp, cutting or burning character, either constant or with exacerbations, and often periodic, returning at a certain hour each day while the attack continues.
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