Shigella species (Shigella spp.)

Shigella is a genus of Gram-negative bacteria that causes shigellosis, a diarrheal illness. The four main species are Shigella dysenteriae, Shigella flexneri, Shigella boydii, and Shigella sonnei. These bacteria invade intestinal cells and produce toxins, leading to inflammation and diarrhea. Transmission occurs via the fecal-oral route. Antibiotic resistance is a growing concern.

Other names

ShigellaShigella dysenteriaeShigella flexneriShigella boydiiShigella sonnei

Antibiotic mechanisms vary depending on the drug (e.g., inhibition of protein synthesis, cell wall synthesis, etc.). Resistance mechanisms involve antibiotic inactivation or efflux.