The manual covers 30 the most relevant to the tropics infectious diseases related to viroses, rickettsioses, protozoiases and helminthiases. The current data on their etiology, epidemiology, pathogenesis, pathological anatomy, clinical manifestations, complications, diagnosis, treatment and prevention are given. The learning of text information is facilitated by photos, charts and tables. It is assigned for English speaking students of medical educational institutions of the lll-IV levels of accreditation.