Background: Schistosomiasis is one of the world's most prevalent parasitic infections, with at least 200 million people infected and about 700 million at risk in Africa, Asia, and South America. Although five species of waterborne trematodes in the genus Schistosoma are capable of causing human infection, the most important are S. haematobium & Schistosoma mansoni and the majority of cases occur in sub-Saharan Africa. Methods: A_comparative study aimed to compare between indirect-hemagglutination assay and Golden Stander Method which used for diagnosis of Schistosoma haematobium. Total of 73.0 samples were collected from people located in two villages in the areas of Sudan endemic with Schistosoma haematobium. The samples were analyzed by the centrifuged parasitological examination and indirecthemagglutination assay (IHA). Result: Statistical analysis of the results showed that the sensitivity value of the IHA test was 95.8% and specificity was 4.1%. Conclusion: A search for a good diagnostic test that can be applied in field situations in Sudan should be given high priority.

Identifying the types of microscopic algae that are prevalent in water basins and studying their importance is one of the most pressing issues awaiting solution today. In this regard, research has been conducted to observe the classification of Lake Kara-Kyr in Bukhara region and the study of the types of microscopic algae in the water, the seasonal propagation. Commonly accepted algal methods and plant identifiers were used to determine the types of microscopic algae. According to the results, a total of 41 species belonging to the Chlorophyta division were identified in Kara-Kyr Lake. The seasonal propagation of the identified species was analyzed and 35 species were recorded in spring, 38 in summer, 28 in autumn, and 11 in winter.

Objectives: This study was carried out for assessing total and available soil Cu in a Carixien soil series of a part of Burgundy, France. Method: Soil samples were collected from surface-ploughed layer in agricultural fields across the southern part of the Yonne district, Burgundy, France. The extraction time of soil Cu ranged from 5 minutes to 24 hours. Findings: The result on Carixien soil was Chaponne. And the trend of extraction on the Carixien soil was different from the results on Domerien soil. The pH value of the extracted solution increased for the Chaponne soil. For purpose of comparison it remained steady in the case of the Dubloc soil from the Domerien soil series, the copper (Cu) absorbance through the atomic absorption spectrophotometry and its content. The Cu concentration in the extracted solution increased up to the 24h-extraction (+ around 200 %) on the basis of 5 minutes. In the case of the Dubloc soil from the Domerien soil series, the Cu concentration in the soil extract only slightly increased during the 24h-extraction period (+ around 100%) on the basis of 5 minutes. Novelty: From these data it is considered that while Domerien soils have no ‘hole’ for Cu extraction, Chaponne soil has a ‘hole’ for Cu extraction.

The article analyzes the species composition, number and ecological factors influencing the redistribution of birds in water bodies in different types of water basins of South-West Kizilkum and the seasonal dynamics of birds.