PASSIVE TRANSFER OF LIGHT SENSITIVITY

Abstract
Although sensitivity to light has long been recognized and studied extensively, there has not been, to my knowledge, any report in this country of the successful passive transfer of such sensitivity. Certain European investigators claim to have passively transferred light sensitivity. Stein,1Rajka2and Bernstein3used the Prausnitz-Küstner method,4and Rarer5used the Königstein-Urbach blister serum method,6but, according to Urbach,7the necessary controls were not made to make their work conclusive. During the past three years I have had occasion to study rather carefully a patient who was particularly sensitive to light and have been able, using a modified Prausnitz-Küstner technic, to transfer this sensitivity passively to 3 different normal persons. A brief report of the case and of the details of the passive transfer experiments follows. REPORT OF CASE The patient was first seen in the office of Dr. John H.

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