Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study
ABSTRACT BACKGROUND: Dengue is an arbovirus that has caused serious problem in Brazil, putting the public health system under severe stress. Understanding its incidence and spatial distribution is essential for disease control and prevention. OBJECTIVE: To perform an analysis on dengue incidence a...
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| Format: | Article |
| Language: | English |
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Associação Paulista de Medicina
2020-12-01
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| Series: | São Paulo Medical Journal |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802020000600554&tlng=en |
| _version_ | 1819259206663929856 |
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| author | Petrúcio Luiz Lins de Morais Priscila Mayrelle Silva Castanha Ulisses Ramos Montarroyos |
| author_facet | Petrúcio Luiz Lins de Morais Priscila Mayrelle Silva Castanha Ulisses Ramos Montarroyos |
| author_sort | Petrúcio Luiz Lins de Morais |
| collection | DOAJ |
| description | ABSTRACT BACKGROUND: Dengue is an arbovirus that has caused serious problem in Brazil, putting the public health system under severe stress. Understanding its incidence and spatial distribution is essential for disease control and prevention. OBJECTIVE: To perform an analysis on dengue incidence and spatial distribution in a medium-sized, cool-climate and high-altitude city. DESIGN AND SETTING: Ecological study carried out in a public institution in the city of Garanhuns, Pernambuco, Brazil. METHODS: Secondary data provided by specific agencies in each area were used for spatial analysis and elaboration of kernel maps, incidence calculations, correlations and percentages of dengue occurrence. The Geocentric Reference System for the Americas (Sistema de Referência Geocêntrico para as Américas, SIRGAS), 2000, was the software of choice. RESULTS: The incidence rates were calculated per 100,000 inhabitants. Between 2010 and 2019, there were 6,504 cases and the incidence was 474.92. From 2010 to 2014, the incidence was 161.46 for a total of 1,069 cases. The highest incidence occurred in the period from 2015 to 2019: out of a total of 5,435 cases, the incidence was 748.65, representing an increase of 485.97%. Population density and the interaction between two climatic factors, i.e. atypical temperature above 31 °C and relative humidity above 31.4%, contributed to the peak incidence of dengue, although these variables were not statistically significant (P > 0.05). CONCLUSION: The dengue incidence levels and spatial distribution reflected virus and vector adjustment to the local climate. However, there was no correlation between climatic factors and occurrences of dengue in this city. |
| first_indexed | 2024-12-23T19:06:20Z |
| format | Article |
| id | doaj.art-c66e617a30484ae687918ff598d86cbb |
| institution | Directory Open Access Journal |
| issn | 1806-9460 |
| language | English |
| last_indexed | 2024-12-23T19:06:20Z |
| publishDate | 2020-12-01 |
| publisher | Associação Paulista de Medicina |
| record_format | Article |
| series | São Paulo Medical Journal |
| spelling | doaj.art-c66e617a30484ae687918ff598d86cbb2022-12-21T17:34:35ZengAssociação Paulista de MedicinaSão Paulo Medical Journal1806-94602020-12-01138655456010.1590/1516-3180.2020.0111.r1.24092020Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological studyPetrúcio Luiz Lins de Moraishttps://orcid.org/0000-0002-1347-2248Priscila Mayrelle Silva Castanhahttps://orcid.org/0000-0002-1220-5308Ulisses Ramos Montarroyoshttps://orcid.org/0000-0001-8967-5693ABSTRACT BACKGROUND: Dengue is an arbovirus that has caused serious problem in Brazil, putting the public health system under severe stress. Understanding its incidence and spatial distribution is essential for disease control and prevention. OBJECTIVE: To perform an analysis on dengue incidence and spatial distribution in a medium-sized, cool-climate and high-altitude city. DESIGN AND SETTING: Ecological study carried out in a public institution in the city of Garanhuns, Pernambuco, Brazil. METHODS: Secondary data provided by specific agencies in each area were used for spatial analysis and elaboration of kernel maps, incidence calculations, correlations and percentages of dengue occurrence. The Geocentric Reference System for the Americas (Sistema de Referência Geocêntrico para as Américas, SIRGAS), 2000, was the software of choice. RESULTS: The incidence rates were calculated per 100,000 inhabitants. Between 2010 and 2019, there were 6,504 cases and the incidence was 474.92. From 2010 to 2014, the incidence was 161.46 for a total of 1,069 cases. The highest incidence occurred in the period from 2015 to 2019: out of a total of 5,435 cases, the incidence was 748.65, representing an increase of 485.97%. Population density and the interaction between two climatic factors, i.e. atypical temperature above 31 °C and relative humidity above 31.4%, contributed to the peak incidence of dengue, although these variables were not statistically significant (P > 0.05). CONCLUSION: The dengue incidence levels and spatial distribution reflected virus and vector adjustment to the local climate. However, there was no correlation between climatic factors and occurrences of dengue in this city.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802020000600554&tlng=enEnvironmental healthArbovirus infectionSevere dengueDengue virusEpidemiologyFrequencySurveillanceSpatial distribution |
| spellingShingle | Petrúcio Luiz Lins de Morais Priscila Mayrelle Silva Castanha Ulisses Ramos Montarroyos Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study São Paulo Medical Journal Environmental health Arbovirus infection Severe dengue Dengue virus Epidemiology Frequency Surveillance Spatial distribution |
| title | Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study |
| title_full | Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study |
| title_fullStr | Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study |
| title_full_unstemmed | Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study |
| title_short | Incidence and spatial distribution of cases of dengue, from 2010 to 2019: an ecological study |
| title_sort | incidence and spatial distribution of cases of dengue from 2010 to 2019 an ecological study |
| topic | Environmental health Arbovirus infection Severe dengue Dengue virus Epidemiology Frequency Surveillance Spatial distribution |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-31802020000600554&tlng=en |
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