Franjola R, Soto G, Montefusco A
Instituto de Parasitología, Universidad Austral de Chile, Valdivia.
Bol Chil Parasitol. 1995 Jul-Dec;50(3-4):66-72.
In order to determine the prevalence of infection by blood and intestinal protozoa in 57 synanthropic rodents from Valdivia city, a study was carried out in the period march-september 1986. The group of rodents studied was constituted by 31 Mus musculus, 19 Rattus rattus and 7 Oryzomys longicaudattus, being 42 males and 15 females. Diagnostic forms of protozoa were found in 70.2% of the investigated animals. The presence of five species of enteroprotozoa and one species of hemoflagelate was detected. The number and the corresponding percentages of infected animals were the following: Giardia muris, 21 (36.8%), Hexamita muris, 22 (38.6%), Trichomonas muris, 27 (47.4%), Entamoeba muris 9 (15.8%), Eimeria sp. 15 (26.3%) and Trypanosoma lewisi 9 (15.8%). Not significant differences were observed when considering host or sex of the species found infected. Furthermore, the yielding of fecal examination considering direct examination, sugar solution flotation and SAFS were compared. The sugar solution flotation technique showed the highest percentage diagnosis of coccidia, whereas SAFS was more efficient for detecting G. muris and E. muris.
为了确定瓦尔迪维亚市57只共生啮齿动物血液和肠道原生动物的感染率，于1986年3月至9月期间开展了一项研究。所研究的啮齿动物群体由31只小家鼠、19只黑家鼠和7只长尾稻鼠组成，其中雄性42只，雌性15只。在70.2%的被调查动物中发现了原生动物的诊断形态。检测到五种肠道原生动物和一种血鞭毛虫。感染动物的数量及相应百分比如下：鼠贾第虫，21只（36.8%）；鼠六鞭毛虫，22只（38.6%）；鼠三毛滴虫，27只（47.4%）；鼠内阿米巴，9只（15.8%）；艾美球虫属，15只（26.3%）；鲁氏锥虫，9只（15.8%）。在考虑受感染物种的宿主或性别时，未观察到显著差异。此外，还比较了粪便检查中直接检查、糖溶液浮选法和SAFS法的检出率。糖溶液浮选技术对球虫的诊断率最高，而SAFS法在检测鼠贾第虫和鼠内阿米巴方面更有效。
