The Invisible Bill of Sanitation: Diseases and Structural Deficit in Brazilian Cities in 2026
The absence of basic sanitation is not just an engineering problem; it is a public health crisis that overburdens the SUS and drains economic productivity. In 2026, the correlation between the lack of sewage treatment and the incidence of waterborne diseases (such as leptospirosis, cholera and arboviroses) reveals an abyss between cities that invest in infrastructure and those that neglect underground services.
The Correlation: Sewage vs. Hospitalizations
For the Cities Score, sanitation is the "mother" indicator. Where sewage is in the open, we observe:
- Increase in Hospital Costs: Every R$ 1 invested in sanitation generates R$ 4 in savings on health expenses.
- Drop in Productivity: Workers in areas without sanitation lose more days of work due to gastrointestinal infections.
- School Deficit: Children in areas without water treatment show lower cognitive performance due to recurrent infections.
Ranking: Cities with Highest Sanitary Risk (Deficit vs. Diseases)
This ranking crosses the percentage of population without access to sewage with the rate of hospitalizations for contagious infectious diseases.
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Cofundador do Seu Crédito Digital e idealizador do Score de Cidades. Jornalista, bacharel em Administração de Empresas pela UFRGS e especialista em SEO e inteligência territorial. Responsável pela curadoria e metodologia dos dados de cidades, estados e bairros.