It has been recognized that the greatest stumbling block in the treatment of asthma is infection and, until some method is developed which may be a guide to vaccine therapy its results will be uncertain. No authoritative work has appeared in the literature to solve this difficult problem. In fact, marked difference of opinion still exists regarding the rôle played by bacteria in the causation of asthma and the value of vaccines in its treatment.
No theory is here offered as to the cause or the relief of asthma, but we do wish to present a clinical method of study and treatment which has appeared to produce in a small series of cases a large percentage of favorable results. We have attempted to free our minds of preconceived ideas and prejudices and to examine the question from the clinical point of view, submitting the method to the verdict of result