What does gram - ve stand for?

Gram -ve stands for Gram-negative, which refers to a classification of bacteria based on their cell wall structure and their reaction to the Gram stain procedure. Gram-negative bacteria have a thin peptidoglycan layer and an outer membrane containing lipopolysaccharides, which makes them resistant to certain antibiotics. This group includes many pathogenic bacteria, such as Escherichia coli and Salmonella. Their Gram-negative status impacts their treatment and the immune response they elicit.