Gram staining, first developed in 1884 by Hans Christian Gram, remains a foundation of microbiology for separating bacteria into Gram-positive and Gram-negative groups. This simple yet powerful test ...

Gram staining remains a cornerstone of microbiology, but accuracy depends heavily on technique, equipment, and interpretation. Comparisons between manual, automated, and point‑of‑care systems show ...

Bacterial species, and even specific strains can be differentiated using a number of molecular techniques such as PCR, quantitative PCR, genome sequencing and mass spectrometry. But even without ...

Gram-negative meningitis is a form of meningitis. The term gram-negative refers to a way of differentiating bacteria. This type of bacteria is typically resistant to drugs and most available ...