Abstract
The characteristic features of allergic diseases in common are discussed.
Allergic disorders exhibit considerable hereditary influence but our knowledge of the inherited allergic constitution is yet incomplete. It is assumed than (1) sensitized antibodies are easily produced, (2) there is hypersensitivity to chemical mediators and (3) the ability to inhibit the action of chemical inhibitors is absent, and these peculiarities probably result in the recurring manifestations of allergic symptoms. The processes by which the allergic symptoms are produced are discussed in relation to the above-mentioned peculiarities as well as to infection. Lastly, various problems concerning therapeutic measures are discussed.
