Ключевые слова: adult, african, american, biracial, black, camera, care, closeup, concept, contagious, cover, disease, environment, epidemic, ethnicity, face, facemask, female, flu, girl, health, healthcare, hygiene, illness, infection, inflammation, influenza, look, mask, medical, medicine, people, person, pneumonia, portrait, prevention, protective, respiratory, safety, sick, sickness, symptoms, teenage, virus, warning, woman, young,