Related Experiment Video
Updated: Feb 19, 2026

Breakfast Habits among Schoolchildren in the City of Uruguaiana, Brazil
Published on: July 29, 2020
Neglected tropical diseases in Brazilian children and adolescents: data analysis from 2009 to 2013
Eduardo Brandão1,2, Sebastián Romero3, Maria Almerice Lopes da Silva4
1National Reference Service for Filariasis, Aggeu Magalhães Institute (Fiocruz-PE), Recife, Pernambuco, Brazil. brandaoe@cpqam.fiocruz.br.
Insights
This study analyzed 64,567 cases of neglected tropical diseases (NTDs) in young Brazilians, revealing a significant public health issue. Findings highlight the urgent need for updated policies to address these parasitic infections in vulnerable populations.
Area of Science:
- Epidemiology
- Public Health
- Infectious Diseases
Background:
- Neglected tropical diseases (NTDs) are linked to poverty and social inequality.
- Four parasitic infections—acute Chagas disease, leishmaniasis, malaria, and schistosomiasis—are prioritized and mandatory notifiable diseases in Brazil.
- Limited data exists on the prevalence and impact of these NTDs in pediatric and adolescent populations.
Purpose of the Study:
- To analyze the epidemiological characteristics of four mandatory notifiable parasitic infections in children and adolescents in Brazil.
- To investigate the spatial distribution and outcomes of these diseases in individuals aged 0–19 years.
Main Methods:
- A retrospective, exploratory, ecological study design was employed.
- Data were collected from the Health Notification Aggravation Information System (SINAN) for cases reported between 2009 and 2013.
- Spatial analysis was conducted on reported cases in individuals aged 0–19 years.
Main Results:
- A total of 64,567 cases were recorded, with an incidence rate of 20.15 per 100,000 inhabitants.
- The average age of affected individuals was 12.2 years, and 62.32% were male.
- A case fatality rate of 0.62% was observed, with visceral leishmaniasis and acute Chagas disease showing the highest lethality; a heterogeneous spatial distribution was noted.
Conclusions:
- These parasitic infections remain a significant public health concern in Brazil, particularly among young individuals.
- The study underscores the necessity for further research and the revision of social, economic, and public health policies.
- Improved health and living conditions are crucial for vulnerable populations, especially children and adolescents, to combat NTDs.
Background:
Neglected tropical diseases (NTDs) prevail in conditions of poverty and contribute to the maintenance of social inequality. Out of the NTDs prioritized by the Brazilian Ministry of Health, four parasitic infections require mandatory notification: acute Chagas disease, leishmaniasis, malaria, and schistosomiasis. Data on the behaviour of these NTDs in the young population are currently limited. This study seeks to analyse the epidemiological aspects of these parasitic infections in children and adolescents in Brazil.
Methods:
A retrospective exploratory ecological study was conducted. A spatial analysis of the cases reported between 2009 and 2013 in individuals aged between 0 and 19 years that were notified through the Health Notification Aggravation Information System (SINAN) was performed.
Results:
In total, 64,567 cases of cutaneous and visceral leishmaniasis, malaria, schistosomiasis, and acute Chagas disease were recorded in the SINAN database, representing a rate of 20.15 cases per 100,000 inhabitants. The average age of the cases was 12.2 years and 62.32% were male. Four hundred and three deaths related to these obligatorily reported parasites were recorded, indicating a case fatality rate of 0.62%. Visceral leishmaniasis and acute Chagas disease had the highest rates of lethality. A heterogeneous spatial distribution of the studied parasites was observed.
Conclusions:
The number of cases and the lethality rate described in this study show that these diseases still represent a serious problem for public health in Brazil. This points to the need to encourage new research and the reformulation of social, economic, and public health policies aimed at ensuring better health and living conditions for all individuals, especially those among the populations considered vulnerable, as is the case of the young.
Related Concept Videos
Prevalence and Incidence
Prevalence indicates the proportion of individuals in a population who have a specific disease or health...
Statistical Methods for Analyzing Epidemiological Data
Bias in Epidemiological Studies

