Ключевые слова: 3d illustration, alert, america, animation, attention, biohazard, caution, chinese, concept, contamination, coronavirus, danger, death, disease, epidemic, flag, flu, global, health, illness, infected, infection, influenza, medical, mers, nation, outbreak, pandemic, people, pneumonia, prevention, quarantine, risk, sars, sick, sickness, states, syndrome, united, usa, vaccine, viral, virus, warning,