Fig. 1
From: Widespread arenavirus occurrence and seroprevalence in small mammals, Nigeria
Map of Nigeria showing small mammals that tested arenavirus-positive according to locality. PCR-positive species are in red (indicating Lassa virus) and purple (representing a Mobala-like virus). IgG-positive species are in green. Red dots indicate localities within the endemic Lassa fever zone and black dots mark those outside the endemic zone