The Bartonella and Related Parasites in Man and Animals (Oroya Fever and Verruga peruviana): (Section of Tropical Diseases and Parasitology)

Through the investigations of Noguchi on the one hand, and Mayer and Kikuth on the other, the unity of the ætiology of Oroya fever and verruga peruviana has been demonstrated experimentally. The Bartonella bacilliformis, the causal organism of Oroya fever, belongs to a group of micro-organisms, the parasitic nature of which has been definitely proved during the last few years. Tests with a view to transmitting the disease to monkeys, and the ætiology, clinical data, pathology, therapy and immunobiology are further explained with reference to personal experiments.Bartonella muris, which was first observed by Mayer in 1921, was confirmed by Mayer, Borchardt and Kikuth to be the causal organism of infectious rat anæmia following splenectomy. After splenectomy of the rat, the latent parasite becomes virulent and often causes a fatal anæmia. The clinical course of this infection is connected with an endothelial reaction which can be demonstrated histologically. The infection is transmitted by rat lice. Chemotherapeutic experiments led to the discovery of an effective arsenic-antimony compound with an index of 1: 3,500, which figure has never hitherto been reached in chemotherapy.The causal organism of dog anæmia following splenectomty is the Bartonella canis.Bartonella and bartonella-like structures as causal organisms and harmless blood parasites in various animals.On account of their peculiar behaviour the Grahamella, which were first described by Graham-Smith, should be kept strictly apart from the Bartonella and looked upon as a species by itself.     

食源性寄生虫病的防治

本文介绍食源性寄生虫病的防治,主要有鱼源性的华支睾吸虫病、棘隙吸虫病和东方次睾吸虫病;螺源性的广州管圆线虫病和徐氏拟裸茎吸虫病;甲壳类的卫氏并殖吸虫病和斯氏狸殖吸虫病;肉源性的牛带绦虫病;猪带绦虫病和旋毛虫病;植物源性的蛔虫病和姜片吸虫病;两栖爬行类的曼氏迭宫绦虫病和昆虫类的西里伯瑞列绦虫病。     

人与自然 和谐相处——灾难留给我们的思考

今天,我们拥有比过去任何时候都要好的生活条件,但也面临着比过去任何时候都要严重的生态和环境问题。大自然孕育了人类,但在人与自然的关系中,人类却早已占据了主动地位。当人的行为违背自然规律,大量的森林被砍伐,大量的水被污染、浪费,大量的野生动物被猎杀……这就导致了人与自然关系的失衡,造成人与自然的不和谐。满目疮痍的地球母亲,她还能养育人类多少年?或许地球正在用它的方式警示着人类——全球气候变暖造成的冰川融化、海平面上升以及各种自然灾害频繁发生,自然环境正在以前所未有的速度恶化着,有限的能源还能支撑人类多久?以下人类经历的种种自然灾害,希望能唤起人类的警醒……