Entomological and epidemiological aspects of dengue epidemics in Fortaleza, Ceará, Brazil, 2001-2012

Oliveira, Rhaquel de Morais Alves Barbosa; Araújo, Fernanda Montenegro de Carvalho; Cavalcanti, Luciano Pamplona de Góes

Acessibilidade / Reportar erro

Brasil

Epidemiologia e Serviços de Saúde

Español English

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ORIGINAL ARTICLE • Epidemiol. Serv. Saúde 27 (1) • 2018 • https://doi.org/10.5123/S1679-49742018000100014 copy

Entomological and epidemiological aspects of dengue epidemics in Fortaleza, Ceará, Brazil, 2001-2012^* * This study is based on Rhaquel de Morais Alves Barbosa’s thesis entitled 'Clinical, entomological and epidemiological aspects of dengue epidemics in Fortaleza, Ceará, Brazil, 2001-2012', defended to the Post-graduate Program in Public Health of the Federal University of Ceará, in December 2014. This study was funded by Fundação Cearense de Apoio ao Desenvolvimento Científico e Tecnológico (FUNCAP): Public Notice 03/2012-PPSUS-MS/CNPq/FUNCAP.

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective:

to characterize the entomological and epidemiological aspects of dengue epidemics occurred in Fortaleza, Ceará, Brazil, from 2001 to 2012.

Methods:

descriptive study with data from the Information System for Notifiable Diseases (Sinan), Information System of Hospitalizations due to Yellow Fever and Dengue (2001-2009), National Program for Dengue Control (2010-2012), and Rapid Survey of Aedes aegypti Infestation Index, referring to the years in which the incidence of dengue was above 75%.

Results:

from 2001 to 2012, 194,446 cases of suspected dengue were notified; the epidemic years were 2001, 2006, 2008, 2011 and 2012; there was a progressive increase in the incidence of the disease (587.0/100 thousand inhabitants in 2001 and 1,561.1/100 inhabitants in 2012); there was co-circulation of up to three serotypes and high vector infestation, especially in water tanks.

Conclusion:

after a long period of virus circulation in Fortaleza, dengue remains as an important health issue, with severe cases and high fatality rate.

Keywords:
Dengue; Epidemiological Surveillance; Aedes; Epidemiology, Descriptive

Variables	2001		2006		2008		2011		2012
Variables	n	%	n	%	n	%	n	%	n	%
Month
January	184	1.4	152	1.0	779	2.3	1,265	3.7	573	1.5
February	275	2.2	180	1.2	1,436	4.2	2,389	7.0	965	2.5
March	948	7.4	287	1.9	2,727	7.9	6,926	20.2	2,793	7.2
April	1,772	13.8	695	4.5	11,009	31.9	11,447	33.3	6,855	17.6
May	3,851	30.1	3,272	21.2	11,667	33.8	6,715	19.5	20,564	52.6
June	2,800	21.8	4,042	26.2	4,639	13.4	2,373	6.9	5,137	13.2
July	1,890	14.7	2,984	19.4	832	2.4	923	2.7	1,054	2.7
August	610	4.8	2,004	13.0	394	1.1	625	1.8	434	1.1
September	190	1.5	797	5.2	216	0.6	445	1.3	203	0.5
October	170	1.3	434	2.8	387	1.1	417	1.2	203	0.5
November	77	0.6	374	2.4	247	0.7	372	1.1	126	0.3
December	51	0.4	187	1.2	214	0.6	455	1.3	115	0.3
Classification
Classical dengue	12,760	67.4	15,169	73.7	33,956	86.8	34,016	89.5	38,876	88.4
Dengue with complications	-	-	118	0.6	327	0.8	234	0.6	93	0.2
Dengue hemorrhagic fever (DHF) / Dengue shock syndrome	58	0.3	121	0.6	264	0.7	102	0.3	53	0.1
Case dismissed	6,115	32.3	5,167	25.1	4,453	11.4	3,411	9.0	4,574	10.4
Inconclusive	-	-	-	-	119	0.3	222	0.6	387	0.9
Evolution
Unknown / unclassified	120	-	246	-	5,723	0.5	3,132	0.6	2,874	2.1
Cure	18,923	99.9	20,461	99.8	33,420	99.4	34,827	99.3	41,081	97.8
Death	10	0.1	36	0.2	20	0.1	26	0.1	23	0.1
Total	19,053	100.0	20,743	100.0	39,163	100.0	37,985	100.0	43,978	100.0

Variables	2001		2006		2008		2011		2012
Variables	n	%	n	%	n	%	n	%	n	%
Hospitalization Time (in days)
<1	2	0.7	3	0.3	22	0.7	9	0.4	4	0.2
1-5	222	81.0	690	74.6	2,561	78.0	1,781	80.2	1,174	42.0
6-14	49	17.9	218	23.5	672	20.4	419	18.9	1,604	57.4
15-21	-	-	7	0.8	15	0.5	7	0.3	9	0.3
22-28	-	-	2	0.2	7	0.2	3	0.1	-	-
≥29	1	0.4	6	0.6	6	0.2	3	0.1	2	0.1
Confirmed cases of dengue
Age group (in years)
≤9	1,623	9.2	2,808	15.0	9,281	23.7	6,387	16.8	4,536	10.3
10-19	2,929	16.7	4,395	23.4	8,561	21.8	8,546	22.5	9,050	20.6
20-49	10,366	59.0	9,387	50.0	17,044	43.5	18,530	48.7	24,241	55.0
50-79	2,572	14.6	2,047	10.9	4,024	10.3	4,241	11.2	5,918	13.5
≥80	93	0.5	123	0.7	257	0.7	303	0.8	251	0.6
Sex
Men	7,546	39.6	9,329	45.0	17,219	44.0	17,321	45.6	18,896	42.9
Women	11,505	60.4	11,409	55.0	21,947	56.0	20,668	54.4	25,106	57.1
Confirmed cases of dengue with complications, hemorrhagic fever, and dengue shock syndrome
Age group (in years)
≤9	4	6.9	22	9.4	112	19.6	34	10.1	9	6.2
10-19	9	15.5	50	21.6	119	20.8	61	18.2	23	15.8
20-49	26	44.8	138	59.2	256	44.8	166	49.4	84	57.5
50-79	19	32.8	22	9.4	79	13.8	68	20.2	25	17.1
≥80	-	-	1	0.4	6	1.0	7	2.1	5	3.4
Sex
Unknown / unclassified	-	-	-	-	-	-	1	0.3	-	-
Men	22	37.9	105	43.9	270	45.7	172	51.2	62	42.5
Women	36	62.1	134	56.1	321	54.3	163	48.5	84	57.5
Deaths (fatality)	5	17.2	12	15.1	19	3.4	26	7.7	23	15.7

Variables	2001	2006	2008	2011	2012
Age Group (in years)
<9	406.9	660.3	2,331.3	1,707.4	1,114.5
10-19	631.4	856.0	1,821.3	1,793.3	1,881.1
20-49	1,047.0	856.6	1,378.6	1,350.7	1,743.0
50-79	886.5	637.5	1,045.5	860.2	1,156.4
≥80	443.1	529.4	896.4	654.8	551.4
Sex
Male	488.2	609.4	1,313.5	1,345.7	1,431.1
Female	673.9	662.0	1,469.6	1,422.2	1,675.5

Types of Deposits	Regional District Office - SERs
	I		II		III		IV		V		VI			Total
	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.	Min.	Max.
Water tanks (A1)	11.6	18.1	3.5	12.5	5.8	18.4	7.7	23.1	12.1	37.8	4.8	11.8	3.5	37.8
Other containers for water storage (A2)	56.3	67.9	20.8	29.1	48.6	68.2	24.1	26.9	46.0	54.1	47.1	54.5	20.8	68.2
Plant pots and vases (B)	8.3	14.3	12.5	30.2	7.9	21.1	3.8	22.4	2.7	25.0	15.2	23.5	2.7	30.2
Drains and toilets (C)	-	8.9	30.0	50.0	5.3	7.0	26.9	30.8	3.2	6.9	4.8	18.2	-	50.0
Tires (D1)	-	1.4	-	1.2	-	1.4	-	7.7	-	0.9	-	0.8	-	7.7
Cans, jars, packages, bottles, and others (D2)	3.6	7.1	-	6.7	5.3	17.4	11.5	17.9	-	4.8	-	14.3	-	17.9
Natural deposits (E)	-	0.9	-	3.5	-	-	-	-	-	3.2	-	3.2	-	3.5

Secretaria de Vigilância em Saúde e Ambiente - Ministério da Saúde do Brasil SRTVN Quadra 701, Via W5 Norte, Lote D, Edifício P0700, CEP: 70719-040, +55 61 3315-3464, Fax: +55 61 3315-3464 - Brasília - DF - Brazil
E-mail: ress.svs@gmail.com

Acompanhe os números deste periódico no seu leitor de RSS

[1] Correspondence: Luciano Pamplona de Góes Cavalcanti - Universidade Federal do Ceará, Departamento de Saúde Comunitária, Rua Professor Costa Mendes, No. 1608, 5º andar, Fortaleza-CE, Brasil. CEP: 60430-140. E-mail: pamplona.luciano@gmail.com