At 3 AM, she was in bed 14. The patient, a 34-year-old man named Samuel, was gasping. His CD4 count was 18. Disseminated BCGitis was confirmed by PCR on bone marrow. The recommended regimen? According to the 4th edition: “No established treatment. Consider isoniazid plus rifampicin.”

The legacy of the Tratado de Infectologia is deeply intertwined with the history of the specialty in Brazil. Professor Veronesi, a pioneer in the field, established a tradition of rigorous clinical study combined with a deep understanding of the epidemiological realities of the Global South. By the time the 6th edition was published, the work had matured into a two-volume masterpiece, reflecting the expansion of the discipline. Unlike foreign textbooks, which often prioritize pathologies common to North America and Europe, this treatise prioritizes the "neglected" diseases that define the Brazilian sanitary reality. It offers exhaustive coverage of endemic conditions such as dengue, yellow fever, leishmaniasis, and Chagas disease, written by experts who have spent their careers studying these pathologies in the field.