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Titolo:
EPIDEMIOLOGIC ASPECTS OF A ST-LOUIS ENCEPHALITIS EPIDEMIC IN JEFFERSON COUNTY ARKANSAS, 1991
Autore:
MARFIN AA; BLEED DM; LOFGREN JP; OLIN AC; SAVAGE HM; SMITH GC; MOORE PS; KARABATSOS N; TSAI TF;
Indirizzi:
CTR DIS CONTROL & PREVENT,NATL CTR INFECT DIS,DIV VECTOR BORNE INFECTDIS FT COLLINS CO 00000 ARKANSAS DEPT HLTH LITTLE ROCK AR 00000
Titolo Testata:
The American journal of tropical medicine and hygiene
fascicolo: 1, volume: 49, anno: 1993,
pagine: 30 - 37
SICI:
0002-9637(1993)49:1<30:EAOASE>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
JAPANESE ENCEPHALITIS; IMMUNIZATION; OUTBREAK; VIRUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
22
Recensione:
Indirizzi per estratti:
Citazione:
A.A. Marfin et al., "EPIDEMIOLOGIC ASPECTS OF A ST-LOUIS ENCEPHALITIS EPIDEMIC IN JEFFERSON COUNTY ARKANSAS, 1991", The American journal of tropical medicine and hygiene, 49(1), 1993, pp. 30-37

Abstract

In 1991, the first epidemic of St. Louis encephalitis (SLE) ever reported in Arkansas resulted in 25 cases in Pine Bluff (attack rate: 44 per 100,000; 95% confidence interval [CI] 28-65). To identify risk factors for SLE viral infection and risk factors for neuroinvasive illness, we conducted a community-based, cross-sectional study of noninfectedand asymptomatically infected persons and a case-control study of asymptomatically and symptomatically infected persons. The SLE viral infection rate was similar in all age groups and in all studied census tracts. Risk factors for asymptomatic infection included: living in a lowincome household (relative risk [RR] = 2.6, 95% CI 1.1-6.0), sitting outside in the evening (RR = 2.1, 95% CI 1.0-4.8), and living in homeswith porches (RR = 2.9, 95% CI 0.9-9.3) or near open storm drains (RR= 2.2, 95% CI 1.0-4.9). Compared with asymptomatically infected persons, symptomatic persons were older (odds ratio [OR] for age greater-than-or-equal-to 55 years = 13.0, 95% CI 1.2-334) and more likely to have a previous history of hypertension (OR = 8.5, 95% CI 1.1-72). Our results indicate that advanced age is the most important risk factor fordeveloping encephalitis after infection with SLE virus. Hypertension and vascular disease may predispose to neuroinvasive disease, but thisepidemiologic study has not ruled out the confounding effects of age.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 21:28:06