1)Cholera. Etiology, epidemiology. Features of pathogenesis. Cholera. Clinical presentation. Degrees of dehydration. Emergency therapy for dehydratic shock. Cholera. Diagnosis and differential diagnosis of cholera. Principles of treatment. 2) Malaria. Etiology. Epidemiology. Risk groups.Malaria. Life cycle of the malaria parasite. Features of the asexual phase of development of the causative agents of different forms of malaria. Origin of febrile paroxysm. Malaria. Prevention. Pathogenesis of relapses in malaria. Complications of malaria. Malaria. Diagnosis of malaria. Treatment of different forms of malaria (indicate drug groups and main representatives 3)Viral hepatitis A and E. Etiology, epidemiology. Clinical classification. Clinical presentation of various forms. Diagnosis. Treatment