Unit-3: Bacterial Pathogenesis


 

Unit-3 Lecture 1

Bacterial Pathogenesis

An Overview to Microbial Pathogenesis  

Virulence Factors that Promote Colonization of a Host

The Ability to Use Motility or Other Means to Contact Host Cells and Disseminate Within a Host

The Ability to Adhere to Host Cells and Resist Physical Removal

The Ability to Invade Host Cells

 

Unit-3 Lecture 2

The Abilty to Compete for Iron and Other Nutrients

An Overview of Phagocytosis, the Complement Pathways, and Antibacterial Peptides, Key Parts of Innate Immune Responses

The Ability to Evade Innate Immune Responses such as Phagocytic Engulfment and Antibacterial Peptides

The Ability to Evade Innate Immune Responses such as Phagocytic Destruction

The Ability to Evade Adaptive Immune Responses

 

Unit-3 Lecture 3

Virulence Factors that Damage or Harm the Host

The Ability of PAMPs to Trigger the Production of Inflammatory Cytokines that Result in an Excessive Inflammatory Response

Overall Mechanism

Gram-Negative Bacterial PAMPs

Gram-Positive Bacterial PAMPs

Acid-Fast Bacterial PAMPs

 

Unit-3 Lecture 4

The Ability to Produce Harmful Exotoxins

An Overview of Exotoxins  

Type I Toxins (Superantigens)

Type II Toxins (Toxins that Damage Host Cell Membranes)

Type III Toxins (A-B toxins and other Toxin that Interfere with Host Cell Function)

The Ability to Induce Autoimmune Responses