Background: Information as regards the epidemiology of the Anaplasmataceae in small ruminants in several low- and middle-income countries is scarce.
Methods: In this study a total of 712 DNA samples collected from small ruminants were analyzed for Anaplasmataceae and Anaplasma ovis using the 16S rRNA and MSP4 genes respectively. Infection risk was assessed by location, sex and age of the animals and qGIS® was used to construct spatial maps.
Results: The prevalence of Anaplasmataceae spp was 89.1% (95% CI: 77.5-95.9) and 79.1% (95% CI: 75.9-82.1) in ovines and caprines respectively (RR = 1.1, 95% CI: 1.0-1.3); higher than those previously reported in other eastern African countries. The prevalence of A. ovis was 26.1% and 25.4% for both ovines and caprines respectively with ovines showing significantly higher levels of infection than caprines (P < 0.05). The risk of Anaplasma ovis infections was not affected by age (OR = 1.2, 95% CI: 0.9-1.7) or sex (OR = 1.1, 95% CI: 0.6-2.0). Small ruminants located at the forest edge (<0.3 km) showed higher A. ovis prevalence than those found inland with infections present in the midland regions associated with increased agricultural activity.
Conclusion: Anaplasma ovis remains a major challenge for small ruminant husbandry in Uganda and infections are under-reported. Policy efforts to prioritize management of Anaplasmataceae for small ruminant health would promote livestock productivity in vulnerable communities, improving livelihoods and ecosystem health.
Bibliographical noteFunding Information:
This work was supported by the Innovation Initiative Grant ID: GR003306 from the University of Edinburgh, The Commonwealth Scholarship Commission from the United Kingdom (Grant ID: UGCD-2015-168), and Busitema University Grant ID: BU/CR/156/1/Kasozi provided some of the funding related to collection and isolation of DNA from ovines and caprines.The authors extend their appreciation to the researchers supporting project number (RSP-2020/201), King Saud University, Riyadh, Saudi Arabia.
This work was supported by the Innovation Initiative Grant ID: GR003306 from the University of Edinburgh, The Commonwealth Scholarship Commission from the United Kingdom (Grant ID: UGCD-2015-168 ), and Busitema University Grant ID: BU/CR/156/1/Kasozi provided some of the funding related to collection and isolation of DNA from ovines and caprines.
© 2020 The Authors
- Anaplasma ovis
- Animal behavior
- Animal breeding
- Ecosystem services
- Polymerase chain reaction
- Small ruminants
- Tick resistance
- Tick vaccines
- Tick-borne diseases
- Veterinary medicine
PubMed: MeSH publication types
- Journal Article