You are here: Home > Research > Publications > Full record view

Full record view

Back to list

Dynamics of dengue virus circulation: a silent epidemic in a complex urban area

Teixeira, M. D.; Barreto, M. L.; Costa, M. D. N.; Ferreira, L. D. A.; Vasconcelos, P. F. C.; Cairncross, S.
Tropical Medicine & International Health, 2002; 7(9):757-62
Edit
Delete
Code Authors

pub_id
12225506
pubmedid
12225506
ISI
177950800007
reference_type
Journal Article
author
Teixeira, M. D.; Barreto, M. L.; Costa, M. D. N.; Ferreira, L. D. A.; Vasconcelos, P. F. C.; Cairncross, S.
title
Dynamics of dengue virus circulation: a silent epidemic in a complex urban area
secondary_title
Tropical Medicine & International Health
ISBNISSN
1360-2276
volume
7
number
9
pages
757-62
year
2002
abstract
Serotypes of dengue DEN-1 and DEN-2 have been reported in much of Brazil over the last 15 years, and DEN-3 serotype was only recently detected. This prospective study was conducted in Salvador, a large city in north-east Brazil, where two epidemics were previously recorded (DEN-1 and DEN-2). We obtained the seroprevalence and 1-year incidence of dengue infections in the population of 30 sampling areas of Salvador and analysed the relationship between intensity of viral circulation, standard of living and vector density. High seroprevalence (68.7%) and annual incidence (70.6%) of infection for one or both circulating serotypes (DEN-1 and DEN-2) were found. High rates of transmission were observed in all studied areas, from the highest to the lowest socio-economic status. The mean PI (Premise Index) for Aedes aegypti was 7.4% (range 0.27-25.6%). Even in the areas with the lowest PI (</=3%) the observed seroincidence was 54.6%. These findings highlighted the existence of a silent epidemic during a period perceived by the Health Services as of low endemicity, indicating the strength and speed of dengue transmission in the city of Salvador.
keywords
dengue; prospective study; serological survey; living conditions; vector density Transmission; disease; fever ; Adolescent; Adult; Aedes; Age Factors; Aged; Animal; Brazil; epidemiology; Child; Child, Preschool; Cohort Studies; Dengue; blood; epidemiology; prevention & control; virology; Dengue Virus; classification; Disease Outbreaks; Female; Human; Incidence; Infant; Infant, Newborn; Insect Vectors; Male; Middle Age; Prospective Studies; Questionnaires; Risk Factors; Seroepidemiologic Studies; Socioeconomic Factors; Support, Non-U.S. Gov't; Urban Health;
secondary_author
place_published
publisher
number_of_volumes
tertiary_author
tertiary_title
edition
date
Sep
type_of_work
subsidiary_author
alternate_title
Trop. Med. Int. Health
call_number
accession_number
12225506
custom_1
WOS OK
custom_2
Unknown
custom_3
custom_4
10.1046/j.1365-3156.2002.00930.x
custom_5
Free
custom_6
10
label
2016-10-19
notes
Journal Article
url
http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids=12225506
author_address
Instituto de Saúde Coletiva, Universidade Federal da Bahia, Rua Padre Feijó, 29 Canela, 40.110-170 Salvador-Bahia, Brazil. magloria@ufba.br
library
12225506 930
date_accepted
date_online
created
2003-07-30 10:35:51
modified
2016-07-08 00:00:00
library

<ArticleId IdType="pubmed">12225506</ArticleId>
<ArticleId IdType="pii">930</ArticleId>