the genetic and antigenic relatedness of eight antigens in three strains of rickettsia tsutsugamushi has been studied by using recombinant organisms expressing epitopes of the 150- , 110- , 72- , 58- , 56- , 49- , 47- , and 20-kilodalton ( kda ) polypeptide antigens of the karp strain .
C0003316
epitopes
C0003320
antigens