Sero-epidemioloical survey on African horse sickness virus among horses in Khartoum State, Central Sudan.
Authors: Karamalla Siham T, Gubran Ahmed I, Adam Ibrahim A, Abdalla Tamadur M, Sinada Reem O, Haroun Eltahir M, Aradaib Imadeldin E
Journal: BMC veterinary research
Summary
# African Horse Sickness Virus: Sero-epidemiological Survey in Sudan African horse sickness virus (AHSV)—an insect-transmitted orbivirus causing haemorrhagic disease with potentially fatal outcomes, particularly in Arabian breeds—remains a significant concern in endemic regions, yet local prevalence data in Sudan were previously limited. Researchers conducted a sero-epidemiological survey across Khartoum State, using serological testing to establish AHSV exposure rates and identify associated risk factors within local ecotype horse populations. The findings provide baseline prevalence data essential for understanding disease burden in central Sudan and for targeting surveillance efforts toward high-risk populations and seasons. For equine practitioners in endemic areas, these results underscore the importance of vector control (particularly Culicoides midges) and breed-specific biosecurity protocols, as Arabian horses and high-value bloodstock warrant heightened protective measures given their documented susceptibility to severe clinical disease. Given AHSV's potential for international spread via infected animals and vectors, practitioners should remain vigilant regarding movement restrictions and diagnostic testing protocols, particularly when importing horses into or from endemic zones.
Read the full abstract on PubMed
Practical Takeaways
- •If working with Arabian or Arabian-type horses in Sudan/African regions, AHSV serology testing and vector control are essential management priorities
- •Understanding local AHSV prevalence through serosurveying helps inform vaccination and insect control strategies in endemic areas
- •High mortality risk in susceptible breeds warrants biosecurity measures including insect vectors control during high-risk seasons
Key Findings
- •AHSV sero-prevalence documented among horse populations in Khartoum State, Central Sudan
- •Arabian horse breeds identified as particularly susceptible to fatal AHSV infection
- •Risk factors for AHSV exposure associated with ecotype breed characteristics in endemic region