Ключевые слова: alert, attention, bacteria, biohazard, care, cell, concept, contamination, corona, coronavirus, covid19, crisis, cure, danger, dangerous, disease, earth, epidemic, global, health, human, illness, immunity, infect, infection, isolated, isolation, medical, medicine, microbe, outbreak, pandemic, planet, prevention, protect, protection, quarantine, research, respiratory, safety, save, science, sick, spread, threat, virology, virus, warning, world,