Ключевые слова: african, african american, american, biology, black, boy, child, childhood, childhood education, class, disease, education, elementary, elementary school, epidemic, face, face mask, flu, glass, illness, infection, influenza, laboratory, male, mask, medical, medicine, microbiology, microscope, ncov, one person, outbreak, pandemic, people, prevention, protection, protective, quarantine, safety, school, schoolboy, science, using, virus,