Leptospirosis is a zoonotic infection induced by pathogen bacteria (genus: Leptospira)
growing in water polluted by animal fluids. Due to its 10 fold occurence in French overseas
aera, and especially in Reunion Island, as compared to metropoly, it is considered as a major
public health issue.
An important inter-individual variability in humoral immune response suggests that
vaccination should be recommended in exposed subjects.
This cohort study aimed to determine if subjects that have been infected by leptospirosis for
1 to 7 years still remain immunized, and then do not need vaccination.