Taken together, the results suggest a complete response might be a good definition of the histologic alterations resembling asthma: whereas 82.4% of mice with a complete response had detectable IL-5, only 3.8% of mice without one did (OR 93.4, 95% c.i. 9.5 - 4904.8, P < 0.05); whereas 77.8% of mice with a complete response were challenged mice, only 6.7% of mice without complete responses were (OR 44.6, 9.6 - 304.7, P < 0.05). This evidence concerns the gene IL5 and asthma.