CHANGES IN KNOWLEDGE, ATTITUDE AND PRACTICES ON AND HAND-FOOT-MOUTH DISEASE OF MOTHERS WITH UNDER-5 YEAR-OLD CHILDREN IN AN LAO COMMUNE, BINH LUC DISTRICT, HA NAM PROVINCE AFTER HAVING THE INTERVENTION VIA HEALTH EDUCATION PROPAGANDA Hand-Foot-Mouth disease (HFMD) is an infectious disease which is contagious from human to human, easy to create an epidemic due to the intestinal virus. It has high death ratio and complications.