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Background: The human liver fluke Opisthorchis viverrini is a food-borne trematode that causes hepatobiliary disease in humans throughout Southeast Asia. People become infected by consuming raw or undercooked fish containing metacercariae. Development of a vaccine to prevent or minimize pathology would decrease the risk of severe morbidity, including the development of bile duct cancer., Methods: We produced an oral vaccine based on recombinant Bacillus subtilis spores expressing the large extracellular loop (LEL) of O. viverrini tetraspanin-2 (Ov-TSP-2), a protein that is abundant on the surface of O. viverrini secreted extracellular vesicles (EVs). Recombinant spores expressing Ov-TSP-2-LEL were orally administered to hamsters prior to challenge infection with O. viverrini metacercariae., Results: Vaccinated hamsters generated serum IgG as well as bile IgG and IgA responses to Ov-TSP-2-LEL, and serum IgG from vaccinated hamsters blocked the uptake of fluke EVs by a human bile duct epithelial cell line. Vaccinated hamsters had 56% reductions in both adult flukes and fecal eggs compared to the control group., Conclusions: These findings indicate that oral vaccination of hamsters with recombinant B. subtilis spores expressing Ov-TSP-2-LEL is efficacious at reducing infection intensity and could form the basis of a vaccine for control of carcinogenic liver fluke infection in humans., (© The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.)

Parasitic diseases are relatively rarely diagnosed and treated in Europe. Therefore, European clinicians are not familiar with their clinical and imaging features. In an era of increased human migration, it is fundamental for clinicians to be able to identify such diseases. We have recently described the features of cystic echinococcosis, schistosomiasis, fascioliasis and ascariasis. Here, we report on the clinical and imaging features as well as on the current therapy options of infections by the small liver flukes: Clonorchis sinensis , Opisthorchis viverrini (Southeast Asian liver fluke) and Opisthorchis felineus (cat liver fluke) and other Opisthorchis species prevalent in South Asia., Competing Interests: Disclosure The authors report no conflicts of interest in this work., (© Georg Thieme Verlag KG Stuttgart · New York.)

Objective: Introduction: Among the cases of biohelminthosis, which are registered in Ukraine, opisthorchiasis is the most common and constitutes the second largest centre in Europe. Due to the growth of migration processes and global tourism, opisthorchiasis is becoming increasingly relevant for the countries of the European Union and the United States. Under modern conditions, the clinical course of many infectious and parasitic diseases has changed. The aim: The present paper discusses and analyzes the cases of opisthorchiasis and hepatitis B virus which are challenging in terms of diagnostics and choice of treatment tactics., Conclusion: Conclusion: The course of acute infections, the formation of results and the effectiveness of treatment are influenced by a number of factors, among which mixed infections are of particular interest.

The elaboration of new technologies for the medical rehabilitation of the patients presenting with chronic cholecystitis in combination with chronic opisthorchiasis is a topical problem facing modern clinical gastroenterology. The application of up-to-date non-pharmacological therapeutic modalities, such as ultrahigh-frequency (UHF) therapy concomitantly with group chronophysiotherapy makes it possible to significantly improve the final outcome of the treatment. The results of clinical studies give evidence of the favourable influence of the combined chronorehabilitative treatment including UHF therapy on the characteristics of the functional state of the biliary-hepatic system and of the organism as a whole. The positive dynamics of these characteristics is suggestive of the high (up to 87,5%) therapeutic effectiveness of the proposed treatment. The investigations into the relationship between this effect and the peculiarities of the combined therapeutic modalities have demonstrated their correlation (χ2=104,13; p=0,0001; V-Kramer´s coefficient =0,35) and showed that the use of combined chronorehabilitation including UHF therapy based on the application of phone resonance radiation guarantees (and is a predictor of) high therapeutic effect (percent concordance =95,6%; standard coefficient=2,13; p=0,001) of the treatment of the patients with chronic cholecystitis in combination with chronic opisthorchiasis. The statistical analysis of the results of application of the modern non-pharmacological therapeutic modalities and the chronobiological approach for the purpose of the combined treatment of patients presenting with chronic cholecystitis in combination with opisthorchiasis with the use of contingency table and logit regression, allowed not only to estimate the interdependence and interrelation between the characteristics of interest but also to reveal predictors of therapeutic effectiveness. These findings are of great practical importance since they can be used for the choice of therapeutic strategies for the management of this category of patients.

The authors give the data-and results of their investigations of 47 patents with rosacea concurrent with chronic opisthorchiasis (Group 1) and 40 patients with rosacea without opisthorhiasis (Group 2): It is found that the severer clinical manifestations of rosacea are, the lower the quality of life is in patients. The patients with rosacea concurrent with chronic opisthorchiasis were found to have severe clinical forms. Rosacea diagnostic rating scores was 1.1-fold higher than in the patients without helminthiasis, suggesting a severer course. Quality-of-life dissatisfaction in patients with rosacea concurrent with chronic opisthorchiasis was significantly higher than in those with rosacea only.