Vol. 12, Issue 6, Part B (2025)

Author(s): Hamid Hamid, Mohammed El Mustafa Ibrahim, Mustafa Mohammed Salih, Ibrahim Abdallah Abdalerahman and Mwahib Abubaker Abdel Malik

Abstract: Darfur states have experienced several outbreaks of dengue, chikungunya, and yellow fever several times in last decades. During August 2019 - January 2020 west Darfur state has been affected by massive outbreak of dengue and chikungunya resulted in high morbidity and mortality rates particularly in Kerenik and El Geneina localities in West Darfur. This study aims to determine key productive container of Aedes mosquito larvae and pupae, in addition to calculate stegomyia indices. A cross-sectional entomological survey for immature stages of Aedes mosquitoes was carried out during the mid of the outbreaks of dengue and chikungunya which were reported from three affected administrative units of Kerenik locality in November 2019. Both Ae. aegypti and Ae. vittatus were found. In Morni neglected pots are the most productive container to Aedes pupae (contribution of pupae) 0.7% followed by plastic water tanks 0.3%, Zeers 0.1% and barrels 0.06% respectively. In Kerenik town barrels were the most productive container 0.7 followed by plastic tanks 0.2%, Zeers 0, 07% and lastly neglected pots 0.04%. Whereas in Um Tagok Zeers were the most productive container 0.5%, neglected pots 0.2%, barrels 0.1%, and plastic tanks 0.09% respectively. The high abundance of Aedes aquatic stages was recorded in Kerenik (HI= 5.8, BI= 6.6,) and the lowest recorded in Morni (HI= 0.9, BI 1.3). The role of Ae. vittaus on transmission of arbovirus diseases in western Darfur state needs further investigations. Vector borne disease early warning system and response are highly needed to minimize the potential risks and burden of the disease.

DOI: 10.22271/23487941.2025.v12.i6b.878