Distribution of HBV genotypes in Brazilian states. State abbreviations: North – AC, Acre; AM, Amazonas; AP, Amapá; PA, Pará; RO, Rondônia; RR, Roraima; and TO, Tocantins. Northeast – AL, Alagoas; BA, Bahia; CE, Ceará; MA, Maranhão; PB, Paraíba; PE, Pernambuco; and SE, Sergipe. Central-West – DF, Federal District; GO, Goiás; MT, Mato Grosso; and MS, Mato Grosso do Sul. Southeast – ES, Espírito Santo; MG, Minas Gerais; RJ, Rio de Janeiro; and SP, São Paulo. South – PR, Paraná; SC, Santa Catarina; and RS, Rio Grande do Sul.