Ключевые слова: america, american, american flag, breathing, concept, country, dangerous, disposable, epidemic, epidemic in america, face, flag, global, hazard, health, infection, infectious, influenza, mask, medic, medical, medicine, pack, packs of medical masks, pandemic, patriot, patriotism, pneumonia, prevention, protect, protection, protective, quarantine, respiratory, risk, safety, sick, surgical, symbol, united, us, usa, usa flag, vaccine, virus, warning,