Ключевые слова: 2020, background, blue, celebration, christmas, concept, corona, coronavirus, covid19, december, decor, decoration, disease, epidemic, face mask, festive, flu, happy new year, health care, holiday, hygiene, mask, medical, medical mask, merry, merry christmas, new year, pandemic, prevention, protection, protective, quarantine, respirator, respiratory, surgical mask, text, tree, virus, xmas, year,