Ключевые слова: advice, alert, away, banner, billboard, communication, contagious, coronavirus, covid19, danger, dangerous, digital, disease, display, distance, emergency, epidemic, flu, germ, health, infection, info, information, instruction, isolation, medicine, message, microbiology, outbreak, pandemic, pneumonia, prevention, quarantine, risk, safe, safety, screen, signage, signboard, social distance, social distancing, text, threat, viral, virus, warning,