Ключевые слова: asian flu, banner, biohazard, blood, cell, contagious, covid, danger, diagnosis, disease, epidemic, epidemiology, fever, flu, flu strain, global, health, illness, immunity, infect, infected, infection, influenza background, macro, medical, medicine, micro, microbe, microbiology, ncov, pandemic, pathogen, pathogenic, pathology, retrovirus, sars, science, vaccine, virology, virus, warning,