Содержание
- 2. WHAT IS INFECTION? Infection is the invasion of body tissues by disease-causing agents, their multiplication, and
- 3. WHAT CAUSES INFECTIONS? Infections are caused by infectious agents including Bacteria Viruses Fungi (ringworm) Protozoa Macroparasites
- 5. PROPERTIES OF INFECTIOUS AGENTS Pathogenicity Virulence Specificity Organotropicity
- 6. PATHOGENICITY Pathogenicity is a specific sign of the pathogen, its potential to cause a specific infectious
- 7. VIRULENCE Virulence is the degree of pathogenicity of a particular microorganism, i.e. this is an individual
- 8. SPECIFICITY Each infectious disease causes a specific pathogen. So, the causative agent of plague causes plague,
- 9. ORGANOTROPICITY Organotropicity is the defeat of cells, tissues and organs that are most suitable for their
- 10. VIRULENCE FACTORS 1. Adhesion to cells Many bacteria for infection of certain cells of the body,
- 11. VIRULENCE FACTORS 2. Invasiveness Some virulent bacteria produce proteins that destroy cell membranes or stimulate phagocytosis
- 12. VIRULENCE FACTORS 3. Colonization is the process of multiplication of microbes at the site of adhesion.
- 13. VIRULENCE FACTORS 4. Suppression of the immune response Many bacteria release virulence factors that inhibit the
- 14. VIRULENCE FACTORS 5. Toxins Many virulence factors are proteins that the pathogen produces and then secretes
- 15. BACTERIAL TOXINS
- 18. FORMS OF INFECTION PROCESSES Infectious disease Bacteriocarrier Chronic (presence of pathogens for several months or even
- 19. COMMON ORAL INFECTIONS Oral Herpes Gingivitis Periodontal Disease Dental Caries Canker Sores
- 20. REASONS OF ORAL INFECTIONS injuries a lack of vitamins and trace elements a general decrease in
- 21. BIOLOGICAL RESEARCH METHODS Biological research methods are aimed at determining the presence of pathogen toxins in
- 22. OBJECTIVES OF BIOLOGICAL METHOD 1. Diagnosis of infectious diseases. 2. Identification of pure culture. 3. Definition
- 23. STAGES OF BIOLOGICAL METHOD 1. Material intake. 2. Material processing. 3. The choice of a laboratory
- 24. TASK 1 STAINING BY BURRY-HINS METHOD The Burry-Hins method is used to color capsular bacteria and
- 25. TASK 1 STAINING BY BURRY-HINS METHOD Klebsiella pneumonia. A smear of pure culture. Burri-Hins staining
- 26. TASK 2 PETRI DISH WITH S. AUREUS INOCULATED ON BLOOD AGAR Hemolysis or haemolysis is the
- 27. TASK 2 PETRI DISH WITH S. AUREUS INOCULATED ON BLOOD AGAR The pathogenic properties of staphylococci
- 28. TASK 2 PETRI DISH WITH S. AUREUS INOCULATED ON BLOOD AGAR 1 – Staphylococcus colonies 2
- 29. TASK 3 TEST TUBES WITH NORMAL RABIT PLASMA AND WITH S. AUREUS PLAQUE Plasma-coagulant activity of
- 30. TASK 3 TEST TUBES WITH NORMAL RABIT PLASMA AND WITH S. AUREUS PLAQUE Plasmacoagulase positive Plasmacoagulase
- 32. Скачать презентацию