Since the first edition more than 10 years ago many new information material about tropical diseases have been collected. New technologies were established (e.g. hybridization techniques, flow cytometry, image analysis, telepathology, serologic analysis etc.). The continuous and rapid improvement of tourism in all countries of the world and the increasing emigration of peoples of the developing countries to the old continents have changed the classical image of tropical diseases which are seen with greater frequency in temporative and highly developed countries. For these reasons new concepts were necessary for the second edition of the pathology of tropical diseases. The 27 chapters are written by well reputed experts in these fields.