Ключевые слова: alert, biohazard, caution, concept, danger, dangerous, detection, disease, drug, epidemic, fever, flu, global, health, hospital, human, illness, infected, infection, infectious, infographic, lung, medical, microbiology, outbreak, pandemic, pathogenic, pneumonia, prevention, protection, quarantine, respiratory, risk, sars, science, sick, treatment, vaccine, viral, virology, virus,