Ключевые слова: bacteria, biology, biotechnology, blood, closeup, control, copyspace, danger, discovery, drop, equipment, examining, experiment, glass, health, healthcare, infection, lab, laboratory, liquid, looking, medical, medicine, micro, microbiology, microscope, microscopy, occupation, people, professional, research, safety, sample, science, scientific, scientist, study, technology, test, testing, tube, vaccine, virology, virus, white,