Summary - General infection theory
First of all, the historical development of infectiousory is outlined. Then an overview is given of the different types of micro-organisms (m.o.). The various contamination routes are discussed, as well as the possible places where the body can be infected. Infections are also reported to cause a disease with clinical signs that can occur in varying severity, from subclinical to acute. Under normal circumstances, the body can trigger an immune response against a pathogen. Here, non-specific and specific mechanisms are put into operation. If the immune response becomes inappropriately violent, there is allergy. In certain circumstances, however, the immune system may also fail, then there is an immunodeficiency. Finally, it is indicated how infections occur and can be combated. Preferably by preventive therapy, but if there is an inflammation or disease, curative therapy will be used. Here we distinguish causal and symptomatic therapy.