Ключевые слова: abstract, airborne, alert, antibacterial, antivirus, asian flu, background, bacteria, bacterial infection, bacterium, biohazard, biological hazard, blocking, caution, cell, concept, copy space, coronavirus, covid19, covid19 disinfected s, danger, disease, disinfection, distance, epidemic, germs, global, infection, isolation, outbreak, pandemic, pollution, protection, quarantine, safe, spread, stay home, stay safe, stop, trendy, virus,