Interior MS of rural school, boys and girls rising from desks to back of room to retrieve lunch boxes, washing hands, drinking from water pail. CS of small girl at school desk coughing while reading a book. CS of boy at school desk reading book and wiping his nose on his sleeve. CU of boy sneezing. HACS of boy and girl washing their hands in basin at rear of rural school. FOLLOW SHOT as they both dry hands on same towel. CU of two boys drinking from same cup.