Seamless 4K 60 fps loop showing hundreds of glowing bacteria-like particles drifting in a fluid medium under a virtual microscope. The animation blends soft depth-of-field with subtle parallax to evoke microbiology, pharmaceutical research and infectious-disease visuals. Perfect as a background or overlay for medical explainers, biotech presentations, disinfectant commercials, laboratory dashboards, sci-fi HUDs, VJ sets and educational videos