Ключевые слова: 2020, 2021, best, blue, blur background, box, care, christmas, clinical, corona, coronavirus, covid19, creative, cure, decoration, disease, dose, drug, flu, gift, gold, green, happiness, happy new year, health, heart, holiday, human, immunization, infection, influenza, injection, joy, life, medical, medicine, merry christmas, new year, pandemic, red, stars, test, trial, vaccination, vaccine, vial, virus, white,