In order to detect leprosy patients early, 192 residents and 106 leprosy household contacts with positive anti ND BSA antibodies in Wenshan Prefecture, Yunnan Province were followed up with lepromin test and serologic test, for 2 years.

• 为了早期发现麻风患者，应用麻风菌素试验和血清抗体检测方法在云南省文山州分别监测192例和106例初次检测抗ND－BSA抗体阳性的自然人群和麻风患者家属发病情况，时间2年。