Molecular and serological prevalence of Leptospira spp. among slaughtered cattle and associated risk factors in the Bahr El Ghazal region of South Sudan

Table 3 Seroprevalence of Leptospira serovars/serogroups by microscopic agglutination test (titre ≥ 100) among slaughter cattle (N = 402) sampled in the Bahr El Ghazal Region, South Sudan, from January to February 2023

Leptospira Serovar	Serogroup	MAT titre										95% CI
Leptospira Serovar	Serogroup	100	200	400	800	1600	3200	6400	12,800	Npos*serovar	Prevalence*	Lower	Upper
L. borgpetersenii sv Tarassovi	Tarassovi	35	84	72	70	34	18	3	0	316	78.6%	74.4	82.3
L. borgpetersenii sv Kenya	Ballum	14	38	17	12	1	0	0	0	82	20.4%	16.7	24.4
L. kirschneri sv Butembo	Autumnalis	17	11	4	2	0	1	0	0	35	8.7%	5.7	11.7
L. interrogans sv Pomona	Pomona	8	7	8	2	2	0	1	0	28	7.0%	4.5	9.5
L. interrogans sv Hebdomadis	Hebdomadis	9	7	3	1	0	0	0	0	20	5.0%	2.8	7.2
L. borgpetersenii sv Sejroe	Sejroe	7	2	0	0	0	0	0	0	9	2.2%	1.0	4.0
L. kirschneri sv Grippotyphosa	Grippotyphosa	1	2	3	2	0	0	0	0	8	2.0%	0.7	3.2
L. borgpetersenii sv Nigeria	Pyrogenes	2	1	2	1	1	0	0	0	7	1.7%	0.7	3.0
L. interrogans sv Australis	Australis	1	3	0	0	0	0	0	0	4	1.0%	0.0	2.2
L. interrogans sv Canicola	Canicola	1	0	0	0	0	0	0	0	1	0.2%	0.0	1.0
L. interrogans sv Icterohaemorrhagiae	Icterohaemorrhagiae	0	0	0	0	0	0	0	0	0	0.0%	0.0	1.0
L. weilli sv Celledoni	Celledoni	0	0	0	0	0	0	0	0	0	0.0%	0.0	1.0
		95	155	109	90	38	19	4	0	510
Any Leptospira spp., serovar	Any positive excluding cross-reaction									329	81.8%	77.9	85.3

*This is an apparent prevalence since the microscopic agglutination test (MAT) is not 100% sensitive or specific

ISSN: 1746-6148