Ключевые слова: analysis, bacillus, background, bacteria, bacterial, bacteriology, bacterium, biology, cell, cells, contaminated, culture, danger, disease, dish, electron, epidemic, experiment, food, germs, grampositive, hazard, health, health care, illness, infection, infectious, inspection, lab, laboratory, listeria, listeriosis, medical, medicine, microbiology, microorganism, microscopic, monocytogenes, organism, pathogen, petri, plate, research, risk, safety, science, scientific, sick, sickness,