“…Streptokinase-streptodornase is often included (21, 24, 31, 32, 36-38, 44-50, 52, 54, 57-73). In areas with endemic mycoses, Histoplasma or Coccidioides antigens may also be applied (30,35,36,39,40,47,(74)(75)(76)(77)(78)(79)(80). Although tetanus immunization is widespread (universal in patients who are US military veterans), tetanus toxoid, until recently, was only occasionally used as a skin-test antigen (21, 45, 50-52, 54, 56, 61, 64, 71, 80-87).…”