Ключевые слова: anxious face, bacteria, biology, bird flu, consternation panic, contagious, doctor, epidemic, face, fearful tension, flu, germs, glove, horror scared, illness, infect, infection, influenza, injection, lab, laboratory, lady scared, looking worried, mask, medical, medicine, mers, microbes, new strain, pandemic, pathogenic, protective, research, researcher, respiratory, retrovirus, scientist, superbug, threatened very, vaccinating, vaccine, viral infection, virology, virus, woman,