Micro-organisms constitute a very antique group of living organisms which appeared on the Earth's surface almost 3000 million years ago.

Using genomics, evolutionary biologists test several hypotheses on the origin of viruses. New evidence suggests they may have emerged more times than previously thought. Corroborating the virus-first ...

Introduction to the ninth edition of the Manual of clinical microbiology -- Laboratory management -- Laboratory design -- Laboratory consultation, communication, and information systems -- General ...