Prevalence of Leptospira in pigs raising in some Northern mountainous and midland provinces, Viet Nam

Abstract

Prevalence of Leptospira in pigs raising in four provinces (Phu Tho, Bac Giang, Hoa Binh and Lao
Cai) of Viet Nam was detected by using Microscopic Agglutination Test (MAT). The average prevalence
of Leptospira in a total of 1080 swine serum samples collecting from the above provinces was 7.78%.
The prevalence range was in Phu Tho (15.93%), in Hoa Binh (8.15%), in Bac Giang (5.56%) and in Lao
Cai (1.48%). 11 different Leptospira serovars were determined and the most prominent serovars were L.
semaranga (39.58%), L. icterohaemorrhagiae (16.67%), L. autumnalis, L. pyrogenes, L. tarassovi (7.29%),
L. bataviae, L. canicola (6.25%) and L. hebdomadis (5.21%