Table 1: Distribution of reactive samples for bartonellosis, according to Federated Units and regions of Brazil.
| Regions of Brazil and Federated Units | Number of reactive samples | Percentage of reactive samples |
| North | 1 | 0.21 |
| Roraima | 1 | 0.21 |
| Northeast | 17 | 3.54 |
| Bahia | 10 | 2.08 |
| Piauí | 4 | 0.83 |
| Pernambuco | 2 | 0.42 |
| Paraíba | 1 | 0.21 |
| Midwest | 18 | 3.75 |
| Goiás | 15 | 3.13 |
| Mato Grosso do Sul | 2 | 0.42 |
| Mato Grosso | 1 | 0.21 |
| Southeast | 410 | 85.42 |
| Rio de Janeiro | 149 | 31.04 |
| Minas Gerais | 141 | 29.38 |
| São Paulo | 99 | 20.63 |
| Espírito Santo | 21 | 4.38 |
| South | 34 | 7.08 |
| Rio Grande do Sul | 28 | 5.83 |
| Santa Catarina | 6 | 1.25 |