JAMA. 1910;55(12):997-998. doi:10.1001/jama.1910.04330120019005.
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All physicians will agree that with the vaccination method now in vogue, using the scarifier (Impf-Lanzette), we can never measure the extent of the trauma and therefore the resulting lesion. As a rule, with experience, we may strike just about the right thing, but in the case of a restless child an unexpected motion on our part or on the part of the patient makes us go beyond the intentional limits. A further point, which has not been considered sufficiently, is that such a large abraded area is a receptacle of a large quantity of vaccine lymph causing too strong a local reaction. Such and other drawbacks can be prevented by a new method, which I herewith present. This method revolves around the instrument to be used, which is the scarifier devised by Professor von Pirquet for his cutaneous tuberculin test. It is a small chisel with the sharpened edge


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