دورية أكاديمية
Spatio-temporal variability in transmission risk of human schistosomes and animal trematodes in a seasonally desiccating East African landscape.
| العنوان: | Spatio-temporal variability in transmission risk of human schistosomes and animal trematodes in a seasonally desiccating East African landscape. |
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| المؤلفون: | Starkloff NC; Department of Biology, Emory University, Atlanta, GA 30322, USA., Angelo T; National Institute of Medical Research Mwanza Center, Mwanza, Tanzania.; Nelson Mandela African Institute of Science and Technology, Arusha, Tanzania., Mahalila MP; National Institute of Medical Research Mwanza Center, Mwanza, Tanzania., Charles J; National Institute of Medical Research Mwanza Center, Mwanza, Tanzania., Kinung'hi S; National Institute of Medical Research Mwanza Center, Mwanza, Tanzania., Civitello DJ; Department of Biology, Emory University, Atlanta, GA 30322, USA. |
| المصدر: | Proceedings. Biological sciences [Proc Biol Sci] 2024 Jan 10; Vol. 291 (2014), pp. 20231766. Date of Electronic Publication: 2024 Jan 10. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Royal Society of London Country of Publication: England NLM ID: 101245157 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1471-2954 (Electronic) Linking ISSN: 09628452 NLM ISO Abbreviation: Proc Biol Sci Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: London : Royal Society of London, c1990- |
| مواضيع طبية MeSH: | Trematoda* , Schistosoma* , Snails*/parasitology, Animals ; Ponds/parasitology ; Tanzania/epidemiology ; Spatio-Temporal Analysis |
| مستخلص: | Different populations of hosts and parasites experience distinct seasonality in environmental factors, depending on local-scale biotic and abiotic factors. This can lead to highly heterogeneous disease outcomes across host ranges. Variable seasonality characterizes urogenital schistosomiasis, a neglected tropical disease caused by parasitic trematodes ( Schistosoma haematobium ). Their intermediate hosts are aquatic Bulinus snails that are highly adapted to extreme rainfall seasonality, undergoing prolonged dormancy yearly. While Bulinus snails have a remarkable capacity for rebounding following dormancy, we investigated the extent to which parasite survival within snails is diminished. We conducted an investigation of seasonal snail schistosome dynamics in 109 ponds of variable ephemerality in Tanzania from August 2021 to July 2022. First, we found that ponds have two synchronized peaks of schistosome infection prevalence and observed cercariae, though of lower magnitude in the fully desiccating than non-desiccating ponds. Second, we evaluated total yearly schistosome prevalence across an ephemerality gradient, finding ponds with intermediate ephemerality to have the highest infection rates. We also investigated dynamics of non-schistosome trematodes, which lacked synonymity with schistosome patterns. We found peak schistosome transmission risk at intermediate pond ephemerality, thus the impacts of anticipated increases in landscape desiccation could result in increases or decreases in transmission risk with global change. |
| التعليقات: | Update of: bioRxiv. 2023 May 26;:. (PMID: 37292923) |
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| فهرسة مساهمة: | Keywords: Bulinus; Schistosoma haematobium; aestivation; ephemerality; schistosomiasis; seasonality |
| تواريخ الأحداث: | Date Created: 20240110 Date Completed: 20240111 Latest Revision: 20240122 |
| رمز التحديث: | 20240122 |
| مُعرف محوري في PubMed: | PMC10777146 |
| DOI: | 10.1098/rspb.2023.1766 |
| PMID: | 38196367 |
| قاعدة البيانات: | MEDLINE |
| تدمد: | 1471-2954 |
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| DOI: | 10.1098/rspb.2023.1766 |