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Acute symptoms according to asthma control and viral infection. In unadjusted analysis, (A) those with uncontrolled asthma do not have significantly more symptoms than those with controlled asthma during acute exacerbations. (B) However, uncontrolled VRAE and uncontrolled with RV had significantly more acute symptoms than controlled VRAE or uncontrolled without virus. RV, rhinovirus; VRAE, virus-related asthma exacerbation.
