The importance of any facts bearing on meningococcus carriers makes advisable a brief report on our present limited series of observations with an intradermal test in meningococcus carriers, in order that they may be extended by others who are dealing with this problem.
It would probably be impossible to make any conclusive statement at present as to the degree of systemic reaction of healthy individuals who harbor the meningococcus in their throats to this micro-organism. On the degree of this reaction would depend, of course, their resistance to further invasion of the coccus; and concerning this resistance we have conflicting testimony. Temporary carriers may, subsequent to the bacteriologic detection of the meningococcus in their throat, fall ill of meningitis; on the other hand, the majority of detected carriers certainly are themselves unaffected in any serious manner by the parasite they harbor. There is, indeed, certain evidence from the occurrence of