Abstract:
INTRODUCTION:The recent emergence and rapid spread of Zika and Chikungunya fevers in Brazil, occurring simultaneously to a Dengue fever epidemic, together represent major challenges to public health authorities. This study aimed to identify and compare the 2015-2016 spatial diffusion pattern of Zika, Chikungunya, and Dengue epidemics in Salvador-Bahia. METHODS:We used two study designs comprising a cross-sectional-to-point pattern and an ecological analysis of lattice data. Residential addresses involving notified cases were geocoded. We used four spatial diffusion analysis techniques: (i) visual inspection of the sequential kernel and choropleth map, (ii) spatial correlogram analysis, (iii) spatial local autocorrelation (LISA) changes analysis and, (iv) nearest neighbor index (NNI) modeling. RESULTS:Kernel and choropleth maps indicated that arboviruses spread to neighboring areas near the first reported cases and occupied these new areas, suggesting a diffusion expansion pattern. A greater case density occurred in central and western areas. In 2015 and 2016, the NNI best-fit model had an S-curve compatible with an expansion pattern for Zika (R2 = 0.94; 0.95), Chikungunya (R2 = 0.99; 0.98) and Dengue (R2 = 0.93; 0.99) epidemics, respectively. Spatial correlograms indicated a decline in spatial lag autocorrelations for the three diseases (expansion pattern). Significant LISA changes suggested different diffusion patterns, although a small number of changes were detected. CONCLUSIONS:These findings indicate diffusion expansion, a unique spatial diffusion pattern of Zika, Chikungunya, and Dengue epidemics in Salvador-Bahia, namely. Knowing how and where arboviruses spread in Salvador-Bahia can help improve subsequent specific epidemic control interventions.
journal_name
Rev Soc Bras Med Tropjournal_title
Revista da Sociedade Brasileira de Medicina Tropicalauthors
Santana LS,Braga JUdoi
10.1590/0037-8682-0563-2019subject
Has Abstractpub_date
2020-04-03 00:00:00pages
e20190563eissn
0037-8682issn
1678-9849pii
S0037-86822020000100315journal_volume
53pub_type
杂志文章abstract::Fecal samples from 140 adult stray dogs of Greater São Paulo (São Paulo State, Brazil) were examined for Cyclospora sp oocysts. No cases of infection by this coccidium were detected. ...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822001000600017
更新日期:2001-11-01 00:00:00
abstract:INTRODUCTION:Visceral leishmaniasis (VL) is an expanding zoonosis in Brazil and is becoming urbanized in several Brazilian regions. This study aims to describe the epidemiological features of human and canine VL in the municipality of Montes Claros, State of Minas Gerais, by focusing on their spatial distribution. MET...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822009000300023
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abstract:INTRODUCTION:Illicit drug users (DUs) are vulnerable to hepatitis C virus (HCV) infection. The shared use of illicit drugs is the main method of HCV transmission. METHODS:A cross-sectional study was conducted in Breves, in northern Brazil. We surveyed 187 DUs to determine the prevalence of and factors associated with ...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
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doi:10.1590/0037-8682-0153-2013
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/0037-8682-0440-2018
更新日期:2019-04-11 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/0037-8682-0210-2019
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822010000300017
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abstract::Present report demonstrates that repeated radiation of Schistosoma mansoni-infected Biomphalaria glabrata, totaling 15,000 rads, caused a sudden, albeit transient, suppression of cercarial shedding. Initially, sporocysts practically disappeared from the snail tissues. The more resistant developing cercariae presented ...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822004000300005
更新日期:2004-05-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822001000200005
更新日期:2001-03-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/0037-8682-0272-2016
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86821999000500003
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:
更新日期:2003-01-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章,评审
doi:10.1590/s0037-86821993000200007
更新日期:1993-04-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822009000600019
更新日期:2009-11-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章,评审
doi:10.1590/s0037-86821997000500009
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822012000300019
更新日期:2012-06-01 00:00:00
abstract::This study aimed to describe the epidemiology and spread of visceral leishmaniasis in the municipality of Várzea Grande, State of Mato Grosso, Brazil, between 1998 and 2007. Forty-eight human cases were reported, with an incidence rate of up to 11.7 per 100,000 inhabitants, particularly among children and adolescents ...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822009000500005
更新日期:2009-09-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:
更新日期:2003-07-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/0037-8682-0196-2016
更新日期:2016-05-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章,评审
doi:10.1590/0037-8682-0162-2014
更新日期:2015-01-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86821990000300001
更新日期:1990-07-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822012000500018
更新日期:2012-10-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822003000500005
更新日期:2003-09-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86821997000100008
更新日期:1997-01-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type:
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更新日期:2020-06-22 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/s0037-86822010000300027
更新日期:2010-05-01 00:00:00
abstract:INTRODUCTION::Methicillin resistant Staphylococcus hominis (MRSHo) has been recognized as an important human pathogen, particularly in immunocompromised patients. METHODS::A total of 19 S. hominis isolates were collected from children at the Children's Medical Centre, Tehran, Iran, from March 2012 to February 2013. MR...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
doi:10.1590/0037-8682-0384-2016
更新日期:2017-05-01 00:00:00
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journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 杂志文章
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更新日期:2011-05-01 00:00:00
abstract::Yellow fever in the Region of Ribeirao Preto at the turn of XIX century: scientific importance and economic repercussion. This historical review describes the bad situation of public health in Brazil during the XIX Century caused by multiple yellow fever outbreaks. The knowledge regarding to yellow fever at that time ...
journal_title:Revista da Sociedade Brasileira de Medicina Tropical
pub_type: 历史文章,杂志文章
doi:10.1590/s0037-86821996000100014
更新日期:1996-01-01 00:00:00