Publications by authors named "Sahar M Bakhiet"

2 Publications

  • Page 1 of 1

A possible role for ticks in the transmission of Madurella mycetomatis in a mycetoma-endemic village in Sudan.

Trans R Soc Trop Med Hyg 2021 04;115(4):364-374

Mycetoma Research Center, Soba University Hospital, University of Khartoum, Sudan.

Background: Currently there is a wide knowledge gap in our understanding of mycetoma epidemiological characteristics, including the infection route.

Methods: A cross-sectional descriptive epidemiological study was carried out to determine the role of exposure to animals and insects such as ticks in the transmission of eumycetoma in two adjacent villages at eastern Sudan.

Results: Significant differences were found between the two villages in the level of contact and exposure to animals and ticks, the percentages of people bitten by ticks, participation in cleaning animal pens and knowledge of the medical importance of ticks. In the village with a high mycetoma prevalence rate, there were high infestation rates of ticks in domestic animals. Hyalomma and Rhipicephalus species were the most prevalent species in houses with mycetoma patients and together they constituted 83% of the total collection. Pool screening of vectors for the detection of Madurella mycetomatis recombinant RNA genes showed one positive pool from Rhipicephalus evertsi following amplification of the universal fungal primer and one positive sample from Hyalomma rufipes following the use of a specific primer.

Conclusion: The findings indicate a possible role of ticks in the transmission of eumycetoma causative agents. However, further in-depth studies are needed to verify this.
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http://dx.doi.org/10.1093/trstmh/trab030DOI Listing
April 2021

Mycetoma spatial geographical distribution in the Eastern Sennar locality, Sennar State, Sudan.

Trans R Soc Trop Med Hyg 2021 04;115(4):375-382

Mycetoma Research Center, University of Khartoum, Khartoum, Sudan.

Background: Mycetoma is a unique neglected tropical disease caused by a substantial number of different fungi or bacteria. Many of the disease's epidemiological characteristics are an enigma. Hence, understanding the spatial geographic distribution of mycetoma may clarify the association between the local environmental indicators, the spatial geographical distribution of mycetoma and its epidemiology.

Methods: This study set out to determine the spatial geographical distribution of mycetoma in the Eastern Sennar locality, Sennar State, one of the highly endemic states in Sudan. It included 594 patients with confirmed mycetoma seen at the Mycetoma Research Centre, University of Khartoum, Khartoum, Sudan, from 1991 to 2020. The spatial geographical distribution of these mycetoma patients was studied. The study area geographic information system data, which included geological, soil, temperature and land cover details, were collected in different geographic information forms. Different geographical analytical techniques were used.

Results: The patients' demographic characteristics were similar to those of the general characteristics of mycetoma patients in Sudan. Eumycetoma was the predominant type of mycetoma encountered in the studied patients. The data studied showed that most patients were located in the southern part of the locality along the Blue Nile river. The study showed an association between patients' spatial geographical distribution and soil types. Most patients' localities had light clay soil (475 patients [80%]), followed by sandy loam soil (79 [13%]) then loam soil (40 [6.71%]). Also, 85% of patients' localities had the same land cover and vegetation. There was no significant correlation between patients' localities with temperature or any other geological characteristic.

Conclusion: The present study showed certain associations between mycetoma spatial geographical distribution and certain environmental indicators. However, a further in-depth study to provide greater insight into the disease's epidemiological characteristics is needed.
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http://dx.doi.org/10.1093/trstmh/trab029DOI Listing
April 2021
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