the latest findings in the allergological immunotherapy are then surveyed , including both the antigen non specific immunotherapy and the relevant possibility of inducing a non specific suppressor mechanism of the ige response , and the antigen specific immunotherapy , which , besides the classical ( aqueous , retard ) vaccines , exploits the monovalent allergenic extracts , the allergoids ( formaldehyde and glutaraldehyde ) and the modified allergens ( urea , peg/pva , d-gl , polysaccharides , photooxydation ) .
C0016564
formaldehyde
C0002092
allergens