Version 2.78

Part Description

LP28423-9   West Nile virus
The West Nile Virus (WNV) is an arbovirus that was first identified in the West Nile District of Uganda in 1937. In the fall of 1999, the National Veterinary Services Laboratory (NVLS) isolated WNV in a dead crow in New York City.(http://www.who.int/mediacentre/factsheets/fs354/en/) Over the following ten years, WNV spread throughout the United States, Canada, Mexico and the Carribbean. WNV is usually transmitted through the bite of the Culex mosquito, but can also be spread in blood transfusions, organ transplants, breast milk, intrauterine exposure and laboratory-acquired infections. Birds are the preferred host of WNV, and the American robin is an important amplifier host since it develops enough virus in its serum to infect feeding mosquitoes. Though most infections with WNV are subclinical for humans, between 2005 and 2009 there were 12,975 people infected with WNV, of which 35% had severe cases of neuroinvasive disease and 496 people died. For individuals who are 70 years of age or older, infection with WNV has a 15-29% fatality rate. For infants and immunocompromised patients infected with WNV, the fatality rate is even higher. Diagnosis of WNV is based on clinical symptoms and antibody titers. The IgM antibody-capture enzyme-linked immunosorbent assay (MAC-ELISA) is the key method used to diagnosis WNV in clinical settings. Antibody titers to WNV NS5 are detectable long-term in vivo and can be used to distinguish past infection with WNV from current infection. RNA is usually undetectable in serum after 13.2 days, but on rare occasions, has been found in serum beyond 40 days. Treatment of infection with WNV is mostly supportive. There are no FDA-approved drugs or vaccines available. PMID: 12089283 PMID: 23034323 Source: Regenstrief LOINC

Fully-Specified Name

Component
West Nile virus RNA
Property
PrThr
Time
Pt
System
Bld
Scale
Ord
Method
Non-probe.amp.tar

Additional Names

Short Name
WNV RNA Bld Ql NAA+non-probe
Display Name
West Nile virus RNA NAA+non-probe Ql (Bld)
Consumer Name Alpha Get Info
West Nile virus, Blood

Basic Attributes

Class
MICRO
Type
Laboratory
First Released
Version 2.77
Last Updated
Version 2.77
Order vs. Observation
Observation

Member of these Panels

LOINC Long Common Name
101344-0 Acute febrile illness global pathogens panel - Blood by NAA with non-probe detection

Member of these Groups Get Info

LOINC Group Group Name
LG32768-0 West Nile virus

Language Variants Get Info

Tag Language Translation
es-ES Spanish (Spain) Virus Nilo Occidental RNA:PrThr:Punto temporal:Sangre:Ord:Amplificación del objetivo no basado en sonda
fr-CA French (Canada) Virus du Nil occidental ARN:Présence-Seuil:Temps ponctuel:Sang:Ordinal:Non-sonde.amplification de cible
it-IT Italian (Italy) Nilo occidentale, virus RNA:PrThr:Pt:Sangue:Ord:Non-sonda.amp.tar
Synonyms: Amplificazione target non basata su sonda Microbiologia Presenza o Soglia Punto nel tempo (episodio) Sangue Sonda con amplificazione Sonda con amplificazione del target Sonda di DNA Virus del Nilo occidentale
zh-CN Chinese (China) 西尼罗河病毒 RNA:存在情况或阈值:时间点:全血:序数型:非探针法.基因扩增.靶向
Synonyms: WNV RNA WNV;西尼罗河热;西尼罗河热病毒 传染毒;传染毒素;滤过性病原体;病毒类;过滤性病原体 依次型;分类顺序型;定性的;序数型（或称等级型）;性质上的;有序型;有序性分类应答;有序性分类结果;秩次型;等级型;筛查;顺序型 借助扩增的探针方法;借助扩增的探针法;探针法.扩增 借助靶向扩增的探针方法;借助靶向扩增的探针法;探针法.扩增.靶向 借助靶向扩增的非探针方法;借助靶向扩增的非探针法;非探针法.扩增.靶向 存在情况;存在;存在与否;是否存在;阈值;界值;界限;阀值;临界值;存在情况（存在、存在与否、是否存在）或阈值（界值、界限、阀值、临界值） 微生物学;微生物学试验;微生物学试验（培养、DNA、抗原及抗体） 扩增型 扩增性 时刻;随机;随意;瞬间 核糖核酸;Ribonucleic acid 经过扩增的 脱氧核糖核酸探针 血;血液 西尼罗河热病毒 RNA

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=103721-7