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人类各种疟原虫在红血球中的形态间日疟和恶性疟是平时最容易从患者血中检出的病原体。三日疟比较少见;卵圆疟更为少见,所以在公共卫生学上远不如前三种重要。一、间日疟:这种疟原虫普通最常见,它的无性生殖各期,均系在末梢血流内发育,共需48小时完成,初期发作时未成熟或已成熟的原虫,均可同时在末梢血液内容到。不过循环时间可以和大多数成熟的原虫在同一时间,这就是间日疟标准发作时间的基础。这种疟原虫在染色的薄血膜片上,这时的滋养体呈戒指形,细胞浆呈圆形或卵圆形,当中有一个大空泡,所以只有周围一圈染成蓝色,细胞核正在这环的一边,染成红色,所以使人看起来非常像一个带印的指环,较恶性疟略粗,同时在一个红血球
Plasmodium falciparum and Plasmodium falciparum malaria in human erythrocytes are the most easily detected pathogens in human blood. Three-day malaria is rare; oval malaria is rarer, so the public health is far less important than the first three. 1. Plasmodium vivax: This Plasmodium is the most common species, and its asexual reproduction stages are all developed in the peripheral bloodstream. It takes 48 hours to complete. The immature or mature protozoa at the onset of the initial stage may be at the same time. In the peripheral blood content. However, the cycle time can be at the same time as most mature protozoa, which is the basis for the standard onset time of P. vivax. The Plasmodium is on a stained thin blood film. At this time, the trophozoites are in the shape of rings. The cytoplasm is round or ovoid. There is a large vacuole, so only one circle is stained blue. The nucleus is On one side of the ring, it is dyed red so it looks very much like a printed ring. It is slightly thicker and slightly more malignant. It is also on a red blood cell.