Ключевые слова: biohazard, black, cell, concept, contagion, contagious, coronavirus, covid 19, covid19, dangerous, digital, disease, disinfectant, epidemic, global, health, health care, health hazard, health scare, human, idea, illness, infection, male, man, medicine, mid adult, one person, outbreak, pandemic, people, protection, protective clothing, real people, science, spraying, spreading, surgical gloves, virus, warning,