Ключевые слова: allergy, asian, back to school, backpack, book, boy, cheerful, child, classroom, conquering adversity, coronavirus, covid19, disease, education, epidemic, face, flu, group, happy, health, health care, indoor, infection, man, mask, medical, pandemic, people, portrait, positive emotion, prevention, primary, protect, protection, protective face mask, reopen, resilience, school, schoolboy, sick, smiling, student, teen, thai, thailand, wearing, woman, young,