Results: 100% of children were under 5 years old, in which boys were more than girls, and 47.1% of patients lived in Hue.
Kết quả: 100% trẻ mắc bệnh < 5 tuổi, trẻ trai gặp nhiều hơn trẻ gái, 47,1% sống tại Huế.