Ключевые слова: background, biohazard, black, capital font, chalk, chalk board, closeup, concept, copy, coronavirus, covid19, description, design, disease, empty, epidemic, flu, global, hashtag, heading, headline, health, illness, infected, infection, infectious, information, letter, medicine, news, notebook, outbreak, pandemic, paper, pneumonia, protection, quarantine, respiratory, sars, sign, space, spread, text, texture, title, vaccine, virus, warning, white, word,