Development and Clinical Applications of a 5-Plex Real-Time RT-PCR for Swine Enteric Coronaviruses

A PEDV/PDCoV/TGEV/SADS-CoV/XIPC 5-plex real-time RT-PCR was developed and validated for the simultaneous detection and differentiation of four swine enteric coronaviruses (PEDV, PDCoV, TGEV and SADS-CoV) in one PCR reaction (XIPC serves as an exogenous internal positive control). The 5-plex PCR had excellent analytical specificity, analytical sensitivity, and repeatability based on the testing of various viral and bacterial pathogens, serial dilutions of virus isolates, and in vitro transcribed RNAs. The 5-plex PCR had comparable diagnostic performance to a commercial PEDV/TGEV/PDCoV reference PCR, based on the testing of 219 clinical samples. Subsequently, 1807 clinical samples collected from various U.S. states during 2019-2021 were tested by the 5-plex PCR to investigate the presence of SADS-CoV in U.S. swine and the frequency of detecting swine enteric CoVs. All 1807 samples tested negative for SADS-CoV. Among the samples positive for swine enteric CoVs, there was a low frequency of detecting TGEV, an intermediate frequency of detecting PDCoV, and a high frequency of detecting PEDV. Although there is no evidence of SADS-CoV presence in the U.S. at present, the availability of the 5-plex PCR will enable us to conduct ongoing surveillance to detect and differentiate these viruses in swine samples and other host species samples as some of these coronaviruses can cause cross-species infection.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:14

Enthalten in:

Viruses - 14(2022), 7 vom: 14. Juli

Sprache:

Englisch

Beteiligte Personen:

Zhu, Jin-Hui [VerfasserIn]
Rawal, Gaurav [VerfasserIn]
Aljets, Ethan [VerfasserIn]
Yim-Im, Wannarat [VerfasserIn]
Yang, Yong-Le [VerfasserIn]
Huang, Yao-Wei [VerfasserIn]
Krueger, Karen [VerfasserIn]
Gauger, Phillip [VerfasserIn]
Main, Rodger [VerfasserIn]
Zhang, Jianqiang [VerfasserIn]

Links:

Volltext

Themen:

5-plex real-time RT-PCR
Journal Article
PDCoV
PEDV
Research Support, Non-U.S. Gov't
SADS-CoV
Swine enteric coronavirus
TGEV

Anmerkungen:

Date Completed 28.07.2022

Date Revised 03.08.2022

published: Electronic

Citation Status MEDLINE

doi:

10.3390/v14071536

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM344113078