A community-based study was done on 5923 rural Bangladeshi children aged 5-15 years to determine the prevalence of rheumatic fever (RF) and rheumatic heart disease (RHD). The prevalence was found to be 1.2 (95% confidence interval 0.3-2.1) per 1000 for RF defined by revised Jones criteria and 1.3 (0.4-2.2) per 1000 for Doppler echocardiography-confirmed RHD.