child wearing face mask going at reopen school after covid-19 quarantine and lockdown,child, face mask, back to school, protection, reopen, school, new normal, coronavirus, boy, prevention, covid-19, flu, corona virus, schoolchild, pandemic, lockdown, quarantine, education, childhood, males, distance, social distancing, open, normal, kids, children, illness, outbreak, student, learning, disease, ill, epidemic, pollution, influenza, face, care, mask, protective, health, people, medical, infection, virus, s