Most species of bacteria can be broadly divided into two groups, known as gram-positive and gram-negative. These categories reflect big differences in the microbes' biology, and they also dictate ...

Gram-negative bacteria's thick outer membrane prevents entry of toxic molecules, including antibiotics. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases ...

Gram-positive cocci are often isolated from clinical samples. It is important to be able to distinguish these organisms from one another because while some are normal flora, others can be pathogenic.

Biochemists from the National University of Singapore (NUS) have discovered a new subclass of trifunctional enzymes in ...

A novel compound targets an essential transport system found only in disease-causing bacteria, leaving commensal bacteria ...

The available clinical evidence does not support the routine use of combination antimicrobial therapy for treatment of gram-negative infections. Patients with shock or neutropenia may benefit from ...