Ключевые слова: bacteria, care, caution, closed, concept, contagion, contamination, coronavirus, coronavirus pandemic, covid, covid19, danger, dangerous, disease, door, epidemic, fear, flu, health, healthcare, illness, infect, infected, infection, information, isolation, keep out, locked, medical, medicine, outbreak, pandemic, pandemics, prevention, protection, protective, quarantine, red, rescue, risk, safety, sars, sick, sickness, sign, spread, spreading, vaccine, virus, warning,