A group of 38 scientists working in nine countries has sounded an alarm about the potential creation of mirror bacteria — synthetic ... or handedness. For example, DNA and RNA are made from ...

anaerobic gram-positive cocci, and Fusobacterium species. The presence of these bacteria is only "normal" if the titer of resident flora is low. When bacterial titers exceed 1000 colony forming ...

A vaccine works by generating an immune response in the body against some kind of pathogen—a virus or bacteria or some other agent that causes disease. Normally when a pathogen invades the body ...