ArticleBMC infectious diseases2018
Seasonal dynamics of influenza in Brazil: the latitude effect.
Article in BMC infectious diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 26 papers, 2 of them syntheses that pooled it.
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Who cites it
26 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- A meta-analysis result: Uneven influences of season, geo-spatial scale and latitude on relationship between meteorological factors and the COVID-19 transmission.Environmental research · 2022Pooled it
- Key Factors That Enable the Pandemic Potential of RNA Viruses and Inter-Species Transmission: A Systematic Review.Viruses · 2021Pooled it
- Phylodynamic reconstruction of H1N1pdm09 influenza virus transmission in Brazil: a decade of evolutionary dynamics.Emerging microbes & infections · 2026Article
- Spatiotemporal Patterns and Socioeconomic Determinants of Pulmonary Tuberculosis in Piauí, Northeast Brazil, 2001-2024.Tropical medicine & international health : TM & IH · 2026Article
- Epidemiological and digital syndromic surveillance data on dengue, chikungunya, and SARI in Brazil.Scientific data · 2026Article
- Acute respiratory viral diseases in Amazonas, Brazil: epidemiological patterns and implications for health surveillance.Revista da Sociedade Brasileira de Medicina Tropical · 2026Article
- Comprehensive molecular epidemiology of influenza viruses in Brazil: insights from a nationwide analysis.Virus evolution · 2025Article
- Article
- Surveillance of Erythrovirus B19 (B19V) in patients with acute febrile illness suspected of arboviruses in Mato Grosso do Sul state, Brazil.Frontiers in microbiology · 2024Article
- Evaluation of the design of the influenza-like illness sentinel surveillance system in Brazil.Cadernos de saude publica · 2024Article
- A combination of annual and nonannual forces drive respiratory disease in the tropics.BMJ global health · 2023Article
- Influenza: seasonality and travel-related considerations.Journal of travel medicine · 2023Review
- Article
- Case-fatality rates and risk of death from COVID-19 and influenza A/H3N2 in Brazil: A nationwide ecological study.Enfermedades infecciosas y microbiologia clinica · 2023Article
- Clinical and epidemiological aspects of severe acute respiratory infection: before and during the first year of the COVID-19 pandemic in Brazil.Transactions of the Royal Society of Tropical Medicine and Hygiene · 2023Article
- Case-fatality rates and risk of death from COVID-19 and influenza A/H3N2 in Brazil: A nationwide ecological study.Enfermedades infecciosas y microbiologia clinica (English ed.) · 2023Article
- The need for a One Health approach for influenza surveillance.The Lancet. Global health · 2022Article
- SARS-CoV-2/influenza A (H3N2) virus coinfection: epidemiological surveillance in Northeast Brazil.Revista da Sociedade Brasileira de Medicina Tropical · 2022Article
- Pollen antigens and atmospheric circulation driven seasonal respiratory viral outbreak and its implication to the Covid-19 pandemic.Scientific reports · 2021Article
- Absence of detection of RSV and influenza during the COVID-19 pandemic in a Brazilian cohort: Likely role of lower transmission in the community.Journal of global health · 2021Article
Corrections and comments
- Erratum issued
Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundInfluenza is a global transmissible disease. Its dynamics is far better understood in temperate climates than in the tropics. We aim to close this knowledge gap between tropical and temperate regions by showing how the influenza seasonality evolves in Brazil, a tropical country that encompasses a wide range of latitudes and six climatic sub-types.
methodsWe analyzed a state-level, weekly Syndrome of Acute Respiratory Disease (SARI) incidence data ranging from 2010 to 2016. We combined two techniques hierarchically: first the wavelet decomposition technique to detect annual periodicity and then circular statistics to describe seasonal measures of the periodic states.
resultsWe found significant annual periodicity in 44% of the states. For these, we calculated several seasonal measures such as the center of gravity or mean timing of activity. The relationship between the seasonal signatures and latitude was clear and statistically significant. States with seasonal signature are clustered along the coast. Most Amazonian and Central West states exhibit no seasonal behavior. Among the seasonal states, influenza starts in Northeast region, spreading southbound.
conclusionsOur study advances the comprehension of influenza seasonality in tropical areas and could be used to design more effective prevention and control strategies.
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