来自阿尔及利亚东北部的Theileria equi的第一个分子表征
Rima Sadeddine1, Souad Righi2, Khelaf Saidani3
1Department, of Veterinary Science, Chadli Bendjedid University, El Tarf, 36000, Algeria. r.sadeddine@univ-eltarf.dz.
Acta parasitologica
|March 6, 2025
概括
在阿尔及利亚东北部,马匹皮洛菌很普遍,在40%的马匹中发现了Theileria equi. 遗传学分析显示,该地区有两种不同的T. equi基因型,影响了寄生虫监测工作.
科学领域:
- 兽医寄生虫学 兽医寄生虫学
- 分子流行病学分子流行病学
- 亚复合体寄生虫的寄生虫
背景情况:
- 马匹皮洛菌 (EP) 是一种严重的传播疾病,影响全球的马匹.
- 由Theileria equi,Theileria haneyi和Babesia caballi引起的EP导致了相当大的经济损失.
- 了解EP的流行率和遗传多样性对于有效的控制策略至关重要.
研究的目的:
- 为了确定阿尔及利亚El Tarf的马匹中Piroplasmida感染的流行率.
- 为了研究来自该地区的Theileria equi分离物的遗传学多样性.
- 为了将局部隔离物与之前识别的序列进行比较.
主要方法:
- 在埃尔塔尔夫的三个市镇收集了120只马匹的血液样本.
- 从阳性样本中放大了小子单元18SrRNA基因.
- 进行DNA测序和基因组分析以确定基因型.
主要成果:
- 观察到马匹皮洛菌的高患病率,40%的马匹被Theileria equi.感染.
- 没有检测到Babesia caballi感染.
- 确定了四种不同的T. equi 18S rRNA基因序列,分为两个基因型 (A和C类).
结论:
- 在阿尔及利亚的研究区域中,马匹皮洛菌病的流行率很高.
- 在同一地理区域内,多个Theileria equi基因型共存.
- 这些发现为Apicomplexan寄生虫监测和疾病管理提供了关键的见解.
相关概念视频
Bacterial Phylum Spirochaetes
Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased by a...
Rocky Mountain Spotted Fever
Rocky Mountain Spotted Fever (RMSF) is a severe tick-borne illness caused by Rickettsia rickettsii, a Gram-negative, coccobacillary bacterium. This pathogen is an obligate intracellular parasite, requiring a host cell for replication. Transmission occurs through the bite of an infected tick. In the United States, the most important vectors are Dermacentor variabilis (American dog tick) and Dermacentor andersoni (Rocky Mountain wood tick), though other tick species may also serve as vectors.
Toxoplasmosis
Toxoplasmosis, a zoonotic disease caused by the protozoan Toxoplasma gondii, poses significant public health challenges globally due to its high seroprevalence and varied clinical manifestations. As an obligate intracellular parasite, T. gondii can infect all warm-blooded vertebrates, but felids are its only definitive hosts, shedding unsporulated oocysts into the environment. Humans typically acquire the infection through ingestion of tissue cysts in undercooked meat or oocysts from...
Amebiasis
Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...


