Abstract
Both ot HB-Ag and HB-Ab in the sera from 159 students of the Nursing School of Kure National Hospital, were once a half year measured by the method of IAHA and PHA respectively for a year. All students are dwelt in the domitory and 2 or 4 persons ina room, whose menbers are exchanged occasionally.
High level of HB-Ag was detected in six students who were thought to be all asymptomatic carriers. HB-Ab could detected in the sera of 7 cases out of 32 students who live with these 6 asymptomatic carriers in the same room. In the addition, HB-Ab also could detect in 27 out of 121 remainders who did not live with asymptomatic carriers in the same room.
From the above results, then, the approximately same detection rate of HB-Ab are obtained to be 21.9% (7/32) and 19.0% (27/121) for each group, respectively.
Forthermore, authors could not find the case whose HB-Ab titer in the sera was elevated after living with HB-Ag carriers and also the same results about HB-Ab detection was found.
It could be concluded that the possibility of HB-Ag infection from HB-Ag carriers as only inmates are not so distinct.
