Salmonella Infection Mechanism in Macrophages - Cellular Defense & Pathogen Evasion #3049549 (License: Personal Use)

The image shows a pink macrophage engulfing red rod-shaped Salmonella bacteria into a phagosome. A blue Type III Secretion System (T3SS) apparatus spans the phagosomal membrane, injecting bacterial effectors (green dots) into the host cytosol. Nearby, an orange lysosome remains unfused, illustrating Salmonella’s strategy to prevent phagolysosome formation and survive intracellularly.

Used in educational resources, textbooks, and research presentations on bacterial pathogenesis, innate immunity, and host-pathogen interactions; targets students, researchers, and clinicians seeking mechanistic understanding of intracellular infection.