74307-0
LOINC Code
| LOINC code | 74307-0 | |
|---|---|---|
| name | ||
| description | Percent genomic homology between a new isolated PRRS virus strain and a PPRS vaccine strain (e.g. Lelystad, Fostera, IngelvacMLV or IngelvacATP) is based on the number of matching amino acids per total amino acids sequenced in the open reading frame 5 (ORF5) gene. The more homologous the ORF5 gene sequences, the more closely the variants are related. It is thought that sequence homology between isolates and vaccines will predict vaccine efficacy, however this is currently debated since little is known about the immune response to PRRS virus. | |
| status | ACTIVE | |
Fully-Specified Name | ||
| component | Porcine reproductive and respiratory syndrome virus ORF5 gene sequence homology to Lelystad | |
| property | NFr = Number Fraction | |
| time | Pt = Point in time: To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements. | |
| system | Isolate | |
| scale | Qn = Quantitative: The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256 | |
| method | Sequencing | |
Additional Names | ||
| short name | Abortus blauw; Blue-eared pig disease; high-throughput sequencing; HTS; Islt; Isol; Lelystad virus; Microbiology; Mystery swine disease; Next generation sequencing; NGS; Number fraction; Percent; Point in time; Porcine epidemic abortion & respiratory synd | |
Basic Attributes | ||
| class | MICRO | |
| type | 1 Laboratory | |
| order vs. observation | PRRSV Lelystad | |
| formula (readable) | (#of matching amino acids/total amino acids sequenced)*100 = % homology | |
| example UCUM units | % The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org) | |
History/Usage | ||
| first released | ||
| last updated | 2.64 | |
| last change type | MIN - change to field other than name | |
| change reason | % | |
Related Names | ||
Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.
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