Chlamydia species:

• Damage the ability of the mitochondria to make ATP;
• Deplete ATP in the cell;
• When ATP is depleted, consume sugar, leading to fermentation;
• Deprive the cell of oxygen, by destroying oxygen transport across the cell wall;
• Generate angiogenesis–new blood vessel formation to compensate for the loss of oxygen in the cell;
• Cause elevated TNF-alpha and inflammation;
• Impair normal apoptosis, creating infinite replication of weaker and infected immortal copies of the cell;
• Create inclusion bodies, of pathogens and abnormal proteins, which are important in the development of cancer;
• Disperse abnormal proteins and debris, which attach to genes and epigenes, altering genes and gene signaling;
• Infect immune cells and spread through the immune cells.

The microbiology of chlamydia closely matches the microbiology of cancer, which suggests chronic chlamydia, and/or more than one type of chronic chlamydia are a cause of cancer.