[Microbial allergy and immunotherapy in allergologic practice].

Microorganisms (viruses, bacteria, fungi) may play a prominent role in triggering allergic manifestations. Either indirectly by releasing potentiating or immuno-modulation factors such as L.P.S. and peptidoglycans, or more directly by their numerous histamine--releasing potentials. However a difficulty remains to establish the relevance of such inter-relationships. The near future will probably give rise to better defined components from microbial origin, with a higher degree of specificity.