Despite the fact that most microorganisms are necessary and good, throughout our lifetimes each of us encounters tens of thousands of different infectious bacteria, viruses, fungi and parasites.

Ref: "MIT researchers isolate masterbuilder' diseasefighting gene." Minneapolis StarTribune, Dec. 22, 1989. p. 2. Image: T-cell dependent b-cell activation, showing TH2-cell (left) B-cell (right) and several interaction molecules. (PD)

© 2024 Creation Moments. All rights reserved.