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Bacteria

Understanding pathogenicity and virulence of pathogenic microorganisms

Pathogenicity is the potential capacity of certain species of microbes to cause an infectious process. It is characterised by a complex of pathogenic properties in the microbe formed in the process of the historical development of the struggle for existence and adaptation to parasitic life in plant, animal and human organisms. Pathogenicity is a specific characteristic of pathogenic microbes.

The role of capsular material in bacterial virulence & bacterial aggressins

Some pathogenic microorganisms (bacilli of anthrax, Clostridium perfringens, S. pneumoniae, causative agents of plague and tularaemia) are capable of producing a capsule in animal and human bodies. Certain microorganisms produce capsules in the organism as well as in nutrient media (causative agents of rhinoscleroma, ozaena, and pneumonia).