Ключевые слова: advice, alert, attention, campaign, caution, clip art, closed, concept, conceptual, contagious, coronavirus, covid19, crisis, danger, disease, epidemic, flag, flu, hazard, home, house, icon, illustration, infected, infection, infectious, information, inside, lifestyle, message, pandemic, portugal, portuguese language, prevention, problem, protection, protective, quarantine, restricted, risk, safety, security, social, stay, stay at home, symbol, virus, warning,