Observational studyBMC public health2020
Retrospective cross-sectional observational study on the epidemiological profile of dengue cases in Pernambuco state, Brazil, between 2015 and 2017.
Observational study in BMC public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Spatiotemporal dynamics of Zika in Brazil, 2016-2023: a nationwide population-based study.Virology journal · 2026Article
- Risk factors predicting dengue hospitalization and disease severity in children and adolescents living in an endemic area of arbovirus transmission in Northeast Brazil (2017-2020).BMC public health · 2025Article
- Exploring the challenge of diagnosing and tracking Oropouche virus during Brazil's largest recorded dengue epidemic in 2024.Virology journal · 2025Article
- Infectivity and Dissemination of Dengue Virus-1 in DifferentTropical medicine and infectious disease · 2025Article
- Clinical and epidemiological profiles of confirmed malaria cases in the state of Pernambuco, Brazil, from 2001 to 2022.Revista da Sociedade Brasileira de Medicina Tropical · 2025Observational
- Epidemiological profile of arboviruses in two different scenarios: dengue circulation vs. dengue, chikungunya and Zika co-circulation.BMC infectious diseases · 2023Article
- Dengue, chikungunya, and Zika virus infections in Latin America and the Caribbean: a systematic review.Revista panamericana de salud publica = Pan American journal of public health · 2023Review
- Lying in wait: the resurgence of dengue virus after the Zika epidemic in Brazil.Nature communications · 2021Article
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Authors and funding
9 authors.
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Abstract
backgroundThe spread of Dengue virus (DENV) infections, as well as their signs and symptoms, are the result of a complex interaction between several factors. In Brazil, especially in the Northeastern, dengue is an important public health problem. Here, we report an epidemiological analysis of dengue cases in Pernambuco state, Northeastern Brazil, during 2015-2017.
methodsThis work is a retrospective cross-sectional observational study on the epidemiological profile of all dengue cases confirmed and reported to the Health Secretary of Pernambuco between 2015 and 2017. These data cover all municipalities of Pernambuco, except Fernando de Noronha. DENV-positive individuals were classified according to the dengue type (without and with warning signs, or severe dengue), age, gender, ethnicity and intermediate geographic region of residence (Recife, Caruaru, Serra Talhada or Petrolina). The distribution of cases over the years was assessed by χ2 test. Temperature and rainfall data were evaluated by Unpaired t-test. p-value < 0.05 and CI 95% were considered in all analyses.
resultsMost dengue cases was without warning signs. The most observed characteristics in the less severe dengue phenotypes were: female, mulatto ethnicity and age between 20 and 39 years old; this profile was more clearly observed in 2015. In 2016 and 2017, however, the numbers of dengue without and with warning signs were more evenly distributed and the difference in cases within groups decreased significantly. Regarding severe dengue, mulattoes were the most affected, but it is possible to note a trend towards a more uniform distribution between the genders and ages. Recife was the region with the highest numbers of both total cases and incidence rates and the highest rainfall levels. Overall, over the years, there has been a decrease in dengue cases in all regions of Pernambuco.
conclusionsWe identified the epidemiological profile of dengue in Pernambuco, Brazil, reporting the gender, age, ethnicity and regions most affected by different dengue types. In addition, we observed that these cases were probably more influenced by rainfall than by temperature. Finally, we believe that this epidemiological knowledge is important to direct public health policies to the reality of each population.
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