A descriptive study of parasites detected in ticks of domestic animals in Lesotho.

The research article is about the investigation of parasites found in ticks on domestic animals in Lesotho. The researchers aimed to identify and understand the relationship between tick species and parasites, specifically piroplasms, that are known to cause significant diseases.

Objective and Methodology of the Study

• The researchers conducted a descriptive study to understand the correlation between different species of ticks and piroplasms parasites in Lesotho, an area with little existing knowledge around these relationships.
• The researchers collected a total of 322 pooled tick DNA samples and screened them using Polymerase Chain Reaction (PCR) for the presence of piroplasms parasites, focusing on those of economic importance. This could be important in controlling tick-related diseases in the livestock industry.

Results and Findings

• Out of the 322 samples, 7% were found to contain piroplasms. The infection rate varied for different types of Babesia: B. bigemina and B. bovis were found in 3.4% and 0.3% of the samples, respectively, while B. ovis and B. motasi were found in 2.8% and 0.6% of the samples, respectively.
• B. bigemina was detected in both Rhipicephalus decoloratus and R. evertsi evertsi ticks, with an infection rate of 15% and 3%, respectively. Otobius megnini tested positive only for B. bovis infection at a rate of 12.5%. In the case of Rhipicephalus e. evertsi, it was the only tick species found positive for ovine babesiosis, caused by B. ovis and B. motasi, with 3.2% and 0.7% infection rates, respectively.
• The researchers did not detect any cases of Equine piroplasm or other Theileria parasites in the tested ticks.
• Finally, all PCR-positive test results were validated by directly sequencing the product.

Study’s Significance and Future Directions

• This is the first study of its kind to report an association between Babesia parasites and tick species in Lesotho. The findings imply that vector-borne diseases are present in ticks on domestic animals in Lesotho.
• The results of this study call for more concerted efforts from veterinary and medical sectors to conduct extensive epidemiological studies on tick-borne diseases in both animals and humans in Lesotho. This would also reveal the role played by different tick species in the transmission of these detected parasites.
• The information provided by the study establishes a foundation for understanding the prevalence of piroplasms parasites in Lesotho, an essential step in combatting the impact these parasites have on domestic animals.