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Additional file 1: Figure S1. TB/Zika questions and allocation in AmericasBarometer survey in Brazil. TBQ3 and TBK7A did not have clearly correct answers, so they were excluded from analyses. Figure S2. Knowledge of LTBI and incidence of TB in Brazil from adjusted regression models. Table S1. Tuberculosis incidence in study survey sites, by region, state, and municipality in Brazil. Table S2. Knowledge and health-seeking behavior of tuberculosis disease and latent tuberculosis infection. Table S3. Avoidance behavior and stigma towards persons with tuberculosis. Table S4. Avoidance behavior and stigma towards persons with zika virus infection. Table S5. Associations between knowledge of TB and stigmatizing attitudes toward Zika. Survey-weighted logistic model odds ratios (and 95% confidence intervals), after adjusting for clinical and demographic factors, including region of Brazil, and stratified by municipality. Table S6. Evaluating knowledge of TB as a mediator of the influence of TB incidence on avoidance behavior and stigmatizing attitudes toward TB. Survey-weighted odds ratios (and 95% confidence intervals), after adjusting for clinical and demographic factors, including region of Brazil, and stratified by municipality. Table S7. Clinical and demographic characteristics of the survey-weighted study population receiving the TB-specific stigma-related questions and Zika-specific stigma-related questions.