Ключевые слова: action, agent, airborne, analysis, bacterial, care, checkup, close contact, communicable, conditions, contagious, containment, danger, deadly, direct, disease, droplets, epidemic, flu, health, illness, indirect, infection, infectious, influenza, medical, microbe, outbreak, pandemic, pathogenic, plague, plan, potential, protection, risk, screening, skin to skin, spreading, test, threat, touch, transmission, trials, viral, virus,