Anastasia V. Simakova , Irina B. Babkina , Nakul Chitnis , Alexey V. Katokhin , Alexandr M. Babkin , Olga S. Fedorova
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This is the most numerous family, 14 species live in the middle Ob River basin, which includes 6 commercial species and 8 non-commercial species.</p><p>This study aimed to investigate the current situation on infestation of non-commercial cyprinids with <em>O. felineus</em> metacercariae and their role in maintaining and spreading the natural focus of opisthorchiasis in the middle Ob River basin.</p><p>We investigated 4 non-commercial species (tench, sunbleak, common bleak, gudgeon), which are highly abundant in water bodies. Tench, common bleak and gudgeon are objects of amateur fishing. These species are traditionally included in the diet of the local population.</p><p><em>Opisthorchis felineus</em> metacercariae were recorded in muscles of all the examined fish species. The identification of metacercariae was confirmed by morphological methods and PCR diagnostics.</p><p>Tench and sunbleak are the main sources of opisthorchiasis infection in the floodplain lakes of the Ob River basin (the prevalence of tench infection is 89.3% and mean intensity of infection is 11.2 metacercariae per fish, the prevalence of sunbleak infection is 50.9% and the intensity of infection is 4.25 metacercariae per fish).</p><p>The prevalence of infection in the introduced common bleak from the rivers of the middle Ob River basin is rapidly increasing from 2.4 (2016–2018) to 37.5% (2020−2021), and mean intensity of infection increased from 1 to 4.15.</p><p>The epizootic state of water bodies in the middle Ob River basin remains unfavorable in relation to opisthorchiasis. Tench, common bleak and sunbleak, along with ide and dace, are the main source of infection for humans and animals, which is evidenced by high infection with <em>Opisthorchis felineus</em> metacercariae in these numerous fish species. They pose the greatest danger of infection of people and animals with opisthorchiasis. These species should be included in the campaign to avoid raw and poorly cooked fish in the diet. 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These species are traditionally included in the diet of the local population.</p><p><em>Opisthorchis felineus</em> metacercariae were recorded in muscles of all the examined fish species. The identification of metacercariae was confirmed by morphological methods and PCR diagnostics.</p><p>Tench and sunbleak are the main sources of opisthorchiasis infection in the floodplain lakes of the Ob River basin (the prevalence of tench infection is 89.3% and mean intensity of infection is 11.2 metacercariae per fish, the prevalence of sunbleak infection is 50.9% and the intensity of infection is 4.25 metacercariae per fish).</p><p>The prevalence of infection in the introduced common bleak from the rivers of the middle Ob River basin is rapidly increasing from 2.4 (2016–2018) to 37.5% (2020−2021), and mean intensity of infection increased from 1 to 4.15.</p><p>The epizootic state of water bodies in the middle Ob River basin remains unfavorable in relation to opisthorchiasis. 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引用次数: 0
摘要
本研究评估了俄罗斯托木斯克地区鄂毕河中游流域非商业鲤科鱼类在维持阿片吸虫焦点中的作用。人类和食肉动物感染猫伊蚊的来源是鲤科鱼类。这是数量最多的科，有14种分布在鄂毕河中游流域，其中商业种6种，非商业种8种。本研究旨在了解鄂毕河中游非商业鲤的感染现状及其在维持和传播俄蜱病自然疫源地中的作用。我们调查了水体中数量丰富的4种非商业鱼种(黄鳝、黄鳝、黄鳝、黄鳝)。Tench, common bleak和gudgeon是业余钓鱼的对象。这些物种传统上是当地居民饮食中的一部分。在所有鱼类的肌肉中均检测到猫科棘球蚴。形态学方法和PCR诊断证实了囊蚴的鉴定。鄂毕河流域河漫滩湖泊的主要感染源是赤潮鱼和黑云鱼(赤潮鱼感染率为89.3%，平均感染强度为11.2个囊蚴/鱼;黑云鱼感染率为50.9%，感染强度为4.25个囊蚴/鱼)。鄂布河中游河流引入的普通蝇感染率从2016-2018年的2.4%快速上升至2020 - 2021年的37.5%，平均感染强度从1上升至4.15。鄂比河中游水体的动物流行状况对蛇胸虫病的发生仍然不利。青鱼、普通青鱼和太阳青鱼是人类和动物的主要感染源，这一点在这些众多的鱼类中都有很高的感染率。它们对人和动物感染蛇胸片病构成最大的危险。这些鱼类应包括在运动中，以避免在饮食中使用生的和未煮熟的鱼。此外，蟑螂、鲷鱼和太阳蛾等物种也有感染蛇胸虫病的危险，但程度较轻。
The role of non-commercial cyprinids in maintenance and spread of the opisthorchiasis focus in the middle Ob River basin (Tomsk region, Russia)
The study assessed the role of non-commercial cyprinid species in maintaining the opisthorchiasis focus in the middle Ob River basin, Tomsk region, Russia. The source of O. felineus infection for humans and carnivores is fish of the family Cyprinidae. This is the most numerous family, 14 species live in the middle Ob River basin, which includes 6 commercial species and 8 non-commercial species.
This study aimed to investigate the current situation on infestation of non-commercial cyprinids with O. felineus metacercariae and their role in maintaining and spreading the natural focus of opisthorchiasis in the middle Ob River basin.
We investigated 4 non-commercial species (tench, sunbleak, common bleak, gudgeon), which are highly abundant in water bodies. Tench, common bleak and gudgeon are objects of amateur fishing. These species are traditionally included in the diet of the local population.
Opisthorchis felineus metacercariae were recorded in muscles of all the examined fish species. The identification of metacercariae was confirmed by morphological methods and PCR diagnostics.
Tench and sunbleak are the main sources of opisthorchiasis infection in the floodplain lakes of the Ob River basin (the prevalence of tench infection is 89.3% and mean intensity of infection is 11.2 metacercariae per fish, the prevalence of sunbleak infection is 50.9% and the intensity of infection is 4.25 metacercariae per fish).
The prevalence of infection in the introduced common bleak from the rivers of the middle Ob River basin is rapidly increasing from 2.4 (2016–2018) to 37.5% (2020−2021), and mean intensity of infection increased from 1 to 4.15.
The epizootic state of water bodies in the middle Ob River basin remains unfavorable in relation to opisthorchiasis. Tench, common bleak and sunbleak, along with ide and dace, are the main source of infection for humans and animals, which is evidenced by high infection with Opisthorchis felineus metacercariae in these numerous fish species. They pose the greatest danger of infection of people and animals with opisthorchiasis. These species should be included in the campaign to avoid raw and poorly cooked fish in the diet. In addition, such species as roach, bream and sunbleak also pose the danger of infection with opisthorchiasis, but to a lesser extent.
期刊介绍：
Food and Waterborne Parasitology publishes high quality papers containing original research findings, investigative reports, and scientific proceedings on parasites which are transmitted to humans via the consumption of food or water. The relevant parasites include protozoa, nematodes, cestodes and trematodes which are transmitted by food or water and capable of infecting humans. Pertinent food includes products of animal or plant origin which are domestic or wild, and consumed by humans. Animals and plants from both terrestrial and aquatic sources are included, as well as studies related to potable and other types of water which serve to harbor, perpetuate or disseminate food and waterborne parasites. Studies dealing with prevalence, transmission, epidemiology, risk assessment and mitigation, including control measures and test methodologies for parasites in food and water are of particular interest. Evidence of the emergence of such parasites and interactions among domestic animals, wildlife and humans are of interest. The impact of parasites on the health and welfare of humans is viewed as very important and within scope of the journal. Manuscripts with scientifically generated information on associations between food and waterborne parasitic diseases and lifestyle, culture and economies are also welcome. Studies involving animal experiments must meet the International Guiding Principles for Biomedical Research Involving Animals as issued by the Council for International Organizations of Medical Sciences.
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