What is the clinical evidence from this study?

Study design: Cross-Sectional. Population: Trypanosoma evansi infection (n=679). Intervention: Location, breed, and age. Primary outcome: Overall prevalence of T. evansi by PCR (95% CI 27.6-34.5).

What does this research mean for the field?

The overall prevalence of Trypanosoma evansi infection among dromedary camels in southwestern Saudi Arabia is 30.9% by PCR, with infection rates significantly associated with geographic location, breed, and age. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To determine the prevalence of Trypanosoma evansi infection and identify associated geographic, breed, and age risk factors in dromedary camels.

March 1, 2019The Thai Journal of Veterinary MedicineOpen Access

Molecular detection of Trypanosoma evansi in camels (Camelus dromedarius) in southwestern Saudi Arabia

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Key result

Trypanosoma evansi infects ~31% of camels in southwestern Saudi Arabia.

95% CI 27.6-34.5
n=679

Why the study?

The prevalence of Trypanosoma evansi infection and its associated risk factors in camels in southwestern Saudi Arabia were not well characterized.

Population

679 camels of three local breeds in 11 governorates of Jazan region, southwestern Saudi Arabia

Comparison

Infection prevalence across different breeds, ages, and locations

Design

Cross-sectional study

Authors

AMAlarabi Mohamed Elsiddig Mohamed YMYasser Osman Mohamed EEElshafie I. ElshafieSultan Qaboos University

Discussion

Member takes

Implication

Prevalence data may guide targeted surveillance in Jazan camels; leaves open breed- and region-specific transmission risks.

Key Points

To determine the prevalence of Trypanosoma evansi infection and identify associated geographic, breed, and age risk factors in dromedary camels.
Conducted a cross-sectional study evaluating 679 blood samples from three camel breeds (Awadia, Awarkia, and Sawahelle) across 11 governorates in Jazan, southwestern Saudi Arabia.
Diagnosed Trypanosoma evansi using Giemsa-stained blood films (GSBF) and polymerase chain reaction (PCR) assays.
Found an overall Trypanosoma evansi prevalence of 30.9% (210/679, 95% CI: 27.6–34.5%) by PCR and 22.2% (151/679, 95% CI: 19.3–25.5%) by GSBF.
Identified significant geographic variation in infection rates (P = 0.023), with the highest prevalence in Ad-Darb (55.6%) and the lowest in Samtah (10.6%).
Detected a significant interaction between breed and age (P = 0.012), with Awadia camels younger than 5 years being 3.6 times more likely to harbor infection than Awarkia camels over 15 years old.

Study Design

Type

Cross-Sectional (n=679)

Multicenter

Yes

Structured PICO

Population

679 camels of three local breeds in the Jazan region of southwestern Saudi Arabia screened for Trypanosoma evansi infection.

Outcome

Prevalence of Trypanosoma evansi infection and associated risk factors

Trypanosoma evansi infection is highly prevalent among camels in southwestern Saudi Arabia, with significant geographic and breed-age interactions.

Cite This Study

Mohamed et al. (2019) conducted a cross-sectional in Trypanosoma evansi infection (n=679). Location, breed, and age was evaluated on Overall prevalence of T. evansi by PCR (95% CI 27.6-34.5). The overall prevalence of Trypanosoma evansi infection among camels in southwestern Saudi Arabia was 30.9% (95% CI 27.6-34.5%) by PCR, with significant variations by location, breed, and age.

synapsesocial.com/papers/6aabc64a8fc9708d5bc07e1e https://doi.org/10.56808/2985-1130.2980

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