[Epidemiological study of leptospirosis in New Caledonia].

The research study focuses on the prevalence of a zoonotic disease called leptospirosis in various animal species in New Caledonia. The researchers discovered that there’s a high occurrence of this disease, particularly among deer and horses.

Objective and Method

• The study aimed at investigating the dispersal and impact of leptospirosis, a damaging disease that can transfer from animals to humans, in New Caledonia. The research involved a cross-sectional survey of domestic and wild animals to understand how widespread the disease was among them.
• For the survey, blood samples were taken from different animal species – 30 cattle, 29 Rusa deer, 25 horses, 51 dogs, and 8 cats. The researchers tested these samples for 23 serovars (variations) of Leptospira species. They used the microscopic agglutination test, which is a standard test for detecting leptospirosis.

Results

• Out of the 143 total samples collected, 84 (representing about 59%) tested positive for one or multiple serovars of pathogenic leptospira. That depicts the high prevalence of the disease among the sampled animals.
• The breakdown of positive results according to animal species was as follows: 43% of 30 cattle, 72% of 29 Rusa deer, 80% of 25 horses, and 43% of 51 dogs. All the 8 cats sampled tested positive for the disease.

Conclusion

• The research concluded that leptospirosis has broad dispersion and high prevalence among wild and domestic animals in New Caledonia. The data pointed to a particularly large presence of the disease among deer and horses.
• The repercussions of these findings are significant, considering that leptospirosis is a zoonotic disease, meaning it can be transmitted to humans. Hence, the study accentuates the need for close monitoring and control efforts of the disease to protect public health.