This collection of articles provides a new understanding of infection. They demonstrate that smaller bacteria such as H Pylori and Staph can live inside larger cells such as yeasts. This symbiotic relationship provides for the tenant protection, nutrition and evasion from the immune system, which is called a “stealth” infection”. In addition, when yeasts such as Candida replicate, they can transmit these bacteria to their progeny, providing a mechanism for stealth replication and persistence. This phenomenon probably occurs with other infections, such as Herpes, which is often paired with Candida, though often stealth as well. Besides protection, there must be benefits for the two organisms (if they are indeed separate). How does the Candida benefit?