Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul
BACKGROUND Leishmaniases are considered a major public health problem in South America, specifically in Brazil. Moreover, the transmission and epidemiology of leishmaniasis are possibly associated with climatic and environmental variations. OBJECTIVE This study aimed to assess the association bet...
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| Format: | Article |
| Language: | English |
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Fundação Oswaldo Cruz (FIOCRUZ)
2020-02-01
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| Series: | Memorias do Instituto Oswaldo Cruz |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762020000100304&tlng=en |
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| author | Antonio Brandão da Silva Neto Everton Falcão de Oliveira César Claudio Cáceres Encina Helen Rezende de Figueiredo Antonio Conceição Paranhos Filho Alessandra Gutierrez de Oliveira |
| author_facet | Antonio Brandão da Silva Neto Everton Falcão de Oliveira César Claudio Cáceres Encina Helen Rezende de Figueiredo Antonio Conceição Paranhos Filho Alessandra Gutierrez de Oliveira |
| author_sort | Antonio Brandão da Silva Neto |
| collection | DOAJ |
| description | BACKGROUND Leishmaniases are considered a major public health problem in South America, specifically in Brazil. Moreover, the transmission and epidemiology of leishmaniasis are possibly associated with climatic and environmental variations. OBJECTIVE This study aimed to assess the association between the extreme climatic phenomenon El Niño-Southern Oscillation (ENSO), the maximum and minimum variations of temperature, precipitation, and soil moisture and the incidence of visceral leishmaniasis (VL) in Mato Grosso do Sul (MS), Brazil, from 2002 to 2015. METHODS The Niño 3.4 index was used for the ENSO variation. The other climatic data were obtained from the climatic tool TerraClimate. Records regarding VL were obtained from the Notification of Injury Information System. FINDINGS From 2002 to 2015, there were 3,137 cases of VL recorded in MS. The annual incidence of the disease was negatively associated with the ENSO index and soil moisture in MS. The VL incidence increased during the negative phase of ENSO and decreased during the positive phase. MAIN CONCLUSIONS The results demonstrated that the interannual cycles of incidence of human VL are significantly associated with the occurrence of the ENSO phenomenon and its phases, El Niño and La Niña. |
| first_indexed | 2024-03-12T08:11:12Z |
| format | Article |
| id | doaj.art-d7eb099ca93246919cc3f5838d70186d |
| institution | Directory Open Access Journal |
| issn | 1678-8060 |
| language | English |
| last_indexed | 2024-03-12T08:11:12Z |
| publishDate | 2020-02-01 |
| publisher | Fundação Oswaldo Cruz (FIOCRUZ) |
| record_format | Article |
| series | Memorias do Instituto Oswaldo Cruz |
| spelling | doaj.art-d7eb099ca93246919cc3f5838d70186d2023-09-02T19:07:02ZengFundação Oswaldo Cruz (FIOCRUZ)Memorias do Instituto Oswaldo Cruz1678-80602020-02-0111510.1590/0074-02760190298Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do SulAntonio Brandão da Silva NetoEverton Falcão de OliveiraCésar Claudio Cáceres EncinaHelen Rezende de FigueiredoAntonio Conceição Paranhos FilhoAlessandra Gutierrez de Oliveirahttps://orcid.org/0000-0002-7677-9351BACKGROUND Leishmaniases are considered a major public health problem in South America, specifically in Brazil. Moreover, the transmission and epidemiology of leishmaniasis are possibly associated with climatic and environmental variations. OBJECTIVE This study aimed to assess the association between the extreme climatic phenomenon El Niño-Southern Oscillation (ENSO), the maximum and minimum variations of temperature, precipitation, and soil moisture and the incidence of visceral leishmaniasis (VL) in Mato Grosso do Sul (MS), Brazil, from 2002 to 2015. METHODS The Niño 3.4 index was used for the ENSO variation. The other climatic data were obtained from the climatic tool TerraClimate. Records regarding VL were obtained from the Notification of Injury Information System. FINDINGS From 2002 to 2015, there were 3,137 cases of VL recorded in MS. The annual incidence of the disease was negatively associated with the ENSO index and soil moisture in MS. The VL incidence increased during the negative phase of ENSO and decreased during the positive phase. MAIN CONCLUSIONS The results demonstrated that the interannual cycles of incidence of human VL are significantly associated with the occurrence of the ENSO phenomenon and its phases, El Niño and La Niña.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762020000100304&tlng=envisceral leishmaniasisneglected diseasesspatial analysisclimate changes |
| spellingShingle | Antonio Brandão da Silva Neto Everton Falcão de Oliveira César Claudio Cáceres Encina Helen Rezende de Figueiredo Antonio Conceição Paranhos Filho Alessandra Gutierrez de Oliveira Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul Memorias do Instituto Oswaldo Cruz visceral leishmaniasis neglected diseases spatial analysis climate changes |
| title | Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul |
| title_full | Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul |
| title_fullStr | Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul |
| title_full_unstemmed | Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul |
| title_short | Effects of El Niño-Southern Oscillation on human visceral leishmaniasis in the Brazilian State of Mato Grosso do Sul |
| title_sort | effects of el nino southern oscillation on human visceral leishmaniasis in the brazilian state of mato grosso do sul |
| topic | visceral leishmaniasis neglected diseases spatial analysis climate changes |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762020000100304&tlng=en |
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