Ключевые слова: alert, attention, biohazard, breathing, business, caution, character, communication, community, concept, connection, contamination, coronavirus, covid, crowd, danger, design, disease, epidemic, face, female, graphic, group, hazard, help, human, icon, illustration, infection, isolated, male, man, mask, medical, people, person, quarantine, sign, social, symbol, team, teamwork, vaccine, virus, warning, woman,