多种沙物种对托斯卡纳病毒的敏感性
Magdalena Jancarova1, Nikola Polanska1, Adrien Thiesson2
1Laboratory of Vector Biology, Department of Parasitology, Faculty of Science, Charles University, Prague, Czech Republic.
PLoS neglected tropical diseases
|May 2, 2025
概括
托斯卡纳病毒 (TOSV) B菌株可以感染新的沙媒介,Phlebotomus tobbi和Phlebotomus sergenti,影响TOSV的传播. 其他测试的沙种类对TOSV没有敏感.
科学领域:
- * 医学昆虫学 医学昆虫学
- * 病毒学 病毒学
- * 流行病学 流行病学
背景情况:
- *托斯卡纳病毒 (TOSV) 是一种新兴的病原体,会导致人类的神经系统疾病.
- *目前对TOSV传播和流行病学的了解有限.
- * 已知的沙媒介可能无法解释TOSV不断扩大的地理范围.
研究的目的:
- * 调查四种沙物种对TOSV的载体能力.
- * 评估对两个不同的TOSV菌株 (A和B系) 的敏感性.
主要方法:
- * 沙物种 (P.tobbi,P.sergenti,P. papatasi,S. schwetzi) 通过血液粉通过TOSV菌株进行口腔感染.
- *评估沙中的感染和传播率.
主要成果:
- * 没有任何测试的沙物种对TOSV A菌株敏感.
- *Phlebotomus tobbi对TOSV B具有很高的易感性和传播,这表明它有可能成为一种新载体.
- *Phlebotomus sergenti也表现出对TOSV B的敏感性,病毒在感染的雌性中传播.
- *Phlebotomus papatasi和Sergentomyia schwetzi对TOSV B.进行了耐火性研究
结论:
- *Phlebotomus tobbi和P. sergenti被确定为TOSV B.的新潜在载体.
- *这些发现具有重要的流行病学影响,特别是在这些物种也传播莱什曼病的地区.
- *Phlebotomus papatasi似乎没有促进TOSV的循环.
相关概念视频
Bacterial Phylum Spirochaetes
1.5K
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...
1.5K
Diversity of Protists I
2.3K
Excavata is a diverse group of protists that includes both chemoorganotrophic and phototrophic species, with some thriving in anaerobic environments. Among the key groups within Excavata are diplomonads and parabasalids, which are flagellated protists that lack mitochondria and chloroplasts. These microorganisms typically inhabit anoxic environments, such as the intestines of animals, where they exist either symbiotically or as parasites, relying on fermentation for energy production. Some...
2.3K
Automated Microbial Diagnostics
83
Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
83
Bacterial Gastroenteritis
95
Bacterial gastroenteritis, characterized by diarrhea, abdominal cramps, and vomiting, is often caused by ingestion of contaminated food or water and is frequently associated with pathogenic Escherichia coli strains. These microbes exploit two principal mechanisms to inflict disease.Shiga toxin–producing E. coli, also referred to as STEC—notably O157:H7—release Shiga toxins that target ribosomes, blocking protein synthesis. The B subunit of the toxin binds the host glycolipid...
95


