macro image of viruses and bacteria in tissues, abstract lactobacilli, monochromatic electron microscope photo, microbiological

lactobacilli macro bacteria abstract microbiological viruses tissues electron microscope microlife background bokeh depth field monochromatic medical design pattern texture microbiology biology science micro health bacterium microscopic cell organism medicine infection life lab fungus microorganism colony scientific white tiny disease laboratory penicillium infectious microbe microscopy closeup experiment pathogens immune scanning microbes image photo