Keywords
Epidemiological surveillance
Early diagnosis
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Abstract
Objective: To analyze the association between the relationship of the probable place of infection and the place of notification and the time to malaria diagnosis and treatment initiation in Pará, Brazil, from 2020 to 2024. Methods: Observational, cross-sectional, analytical epidemiological study using secondary data from the Malaria Epidemiological Surveillance Information System (SIVEP-Malária). Intervals between symptom onset and diagnosis, symptom onset and treatment, and diagnosis and treatment were assessed. Outcomes were categorized as occurring on the same day as symptom onset (0 day) or later (≥1 day). Results: A total of 116,740 cases were analyzed; 70.1% were reported in the same municipality as the probable place of infection, 24.2% in a different municipality within the same state, and 5.7% in another state. Notification in a different municipality was associated with a higher prevalence of diagnosis (PR=1.17) and treatment (PR=1.16) occurring after the day of symptom onset. Conclusion: Discordance between the probable place of infection and the place of notification was associated with longer time to diagnosis and treatment, highlighting the need for territorial strategies for active case finding, surveillance, and timely malaria management in Pará.
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