解放前,黑热病在我省流行猖獗.解放后,由于大力开展了防治工作。患病率大幅度下降,自1958年以后仅有散在发生.近年来,我们接诊了由各地介绍来的所谓“黑热病”患者,但经详细询问检查,均排除了黑热病.这些人被误诊的原因,主要是缺乏必要的病原体检查,未能仔细询问和分析病情所造成的.亦有个别病例,虽经穿刺但未查到黑热病原虫而仍然怀疑本病。疑似黑热病者应根据黑热病的症状和体征,开展对黑热病有关线索的调查:①长期不规则发热,食欲减退,乏力,鼻衄及齿龈出血,伴有脾肿大或肝脾均肿大,而排除了其他疾病者.不满周岁的婴儿,虽具备上述某些症状,但必须经过白(?)季节(6～9月)。②面、颈、四肢皮肤发红,并生有大小不等的紫红色疙瘩,色素减退斑,或全身、口鼻内长有不痛、不溃烂的疙瘩,可除外一般皮肤病者.③颈部及四肢淋巴结肿大,长期治疗无效,而 Before the liberation, the kala-azar epidemic was rampant in our province. After the liberation, due to vigorously carried out prevention and control work. The prevalence rate dropped drastically, only sporadically after 1958. In recent years, we have interviewed so-called “kala-azar” patients introduced from all over the country but were excluded from the kala-azar by careful inquiry and examination. The main reason is the lack of the necessary pathogen examination, the inability to ask and analyze the condition carefully, and there are individual cases that still suspect the disease though the paraplegum has not been detected. Suspected kala-azar should be based on the symptoms and signs of kala-azar, carry out the investigation of calamitous clues: ① long-term irregular fever, loss of appetite, fatigue, epistaxis and bleeding gums, accompanied by splenomegaly or liver and spleen are swollen, and excluded For other illnesses, babies under the age of 4 may have white (?) Seasons (June to September) although they have some of the above symptoms. ② face, neck, limbs, skin redness, and students have different sizes of purple crimson, pigmentation spots, or the whole body, nose and mouth long without pain, not ulceration of the pimple, except for general skin disease. ③ neck Department and limbs, swollen lymph nodes, long-term treatment ineffective