Figure 2.

Complete (A) and final (B) classification trees exploring the influence of gender and hunting or logging behaviors on the probability of showing antibodies against Mayaro virus in the Peruvian Amazon forest. The factor “cohabit” indicates people who share home with a Mayaro seropositive person. Note that gender was initially retained but later excluded after model simplification. Left branches indicate no hunters or no cohabitation, whereas the right branches summarize the probability for male hunters or cohabiting people.