Figure 3From: Emergence of chikungunya seropositivity in healthy Malaysian adults residing in outbreak-free locations: Chikungunya seroprevalence results from the Malaysian Cohort Clustering of CHIK seroprevalence in the Negeri Sembilan state. Red dots represent chikungunya seropositive samples while black dots represent chikungunya seronegative samples. Lines mark district borders while dotted lines define sub-districts.Back to article page