Use of Testing for West Nile Virus and Other Arboviruses

In the United States, the most commonly diagnosed arboviral disease is West Nile virus (WNV) infection. Diagnosis is made by detecting WNV IgG or viral genomic sequences in serum or cerebrospinal fluid. To determine frequency of this testing in WNV-endemic areas, we examined the proportion of tests...

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Main Authors: Jakapat Vanichanan, Lucrecia Salazar, Susan H. Wootton, Elizabeth Aguilera, Melissa N. Garcia, Kristy O. Murray, Rodrigo Hasbun
Format: Article
Language:English
Published: Centers for Disease Control and Prevention 2016-09-01
Series:Emerging Infectious Diseases
Subjects:
Online Access:https://wwwnc.cdc.gov/eid/article/22/9/15-2050_article
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author Jakapat Vanichanan
Lucrecia Salazar
Susan H. Wootton
Elizabeth Aguilera
Melissa N. Garcia
Kristy O. Murray
Rodrigo Hasbun
author_facet Jakapat Vanichanan
Lucrecia Salazar
Susan H. Wootton
Elizabeth Aguilera
Melissa N. Garcia
Kristy O. Murray
Rodrigo Hasbun
author_sort Jakapat Vanichanan
collection DOAJ
description In the United States, the most commonly diagnosed arboviral disease is West Nile virus (WNV) infection. Diagnosis is made by detecting WNV IgG or viral genomic sequences in serum or cerebrospinal fluid. To determine frequency of this testing in WNV-endemic areas, we examined the proportion of tests ordered for patients with meningitis and encephalitis at 9 hospitals in Houston, Texas, USA. We identified 751 patients (567 adults, 184 children), among whom 390 (52%) experienced illness onset during WNV season (June–October). WNV testing was ordered for 281 (37%) of the 751; results indicated acute infection for 32 (11%). Characteristics associated with WNV testing were acute focal neurologic deficits; older age; magnetic resonance imaging; empirically prescribed antiviral therapy; worse clinical outcomes: and concomitant testing for mycobacterial, fungal, or other viral infections. Testing for WNV is underutilized, and testing of patients with more severe disease raises the possibility of diagnostic bias in epidemiologic studies.
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spelling doaj.art-52765d55b2f34fa8bdb480179ffa05d32022-12-22T03:14:54ZengCenters for Disease Control and PreventionEmerging Infectious Diseases1080-60401080-60592016-09-012291587159310.3201/eid2209.152050Use of Testing for West Nile Virus and Other ArbovirusesJakapat VanichananLucrecia SalazarSusan H. WoottonElizabeth AguileraMelissa N. GarciaKristy O. MurrayRodrigo HasbunIn the United States, the most commonly diagnosed arboviral disease is West Nile virus (WNV) infection. Diagnosis is made by detecting WNV IgG or viral genomic sequences in serum or cerebrospinal fluid. To determine frequency of this testing in WNV-endemic areas, we examined the proportion of tests ordered for patients with meningitis and encephalitis at 9 hospitals in Houston, Texas, USA. We identified 751 patients (567 adults, 184 children), among whom 390 (52%) experienced illness onset during WNV season (June–October). WNV testing was ordered for 281 (37%) of the 751; results indicated acute infection for 32 (11%). Characteristics associated with WNV testing were acute focal neurologic deficits; older age; magnetic resonance imaging; empirically prescribed antiviral therapy; worse clinical outcomes: and concomitant testing for mycobacterial, fungal, or other viral infections. Testing for WNV is underutilized, and testing of patients with more severe disease raises the possibility of diagnostic bias in epidemiologic studies.https://wwwnc.cdc.gov/eid/article/22/9/15-2050_articlemeningitisencephalitiscommunity-acquired CNS infectionsWest Nile virus testingarboviral diseaseviruses
spellingShingle Jakapat Vanichanan
Lucrecia Salazar
Susan H. Wootton
Elizabeth Aguilera
Melissa N. Garcia
Kristy O. Murray
Rodrigo Hasbun
Use of Testing for West Nile Virus and Other Arboviruses
Emerging Infectious Diseases
meningitis
encephalitis
community-acquired CNS infections
West Nile virus testing
arboviral disease
viruses
title Use of Testing for West Nile Virus and Other Arboviruses
title_full Use of Testing for West Nile Virus and Other Arboviruses
title_fullStr Use of Testing for West Nile Virus and Other Arboviruses
title_full_unstemmed Use of Testing for West Nile Virus and Other Arboviruses
title_short Use of Testing for West Nile Virus and Other Arboviruses
title_sort use of testing for west nile virus and other arboviruses
topic meningitis
encephalitis
community-acquired CNS infections
West Nile virus testing
arboviral disease
viruses
url https://wwwnc.cdc.gov/eid/article/22/9/15-2050_article
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