Reverse transcriptase polymerase chain reaction-based diagnosis and molecular characterization of a new rat coronavirus strain

BACKGROUND AND PURPOSE: Rat coronaviruses (RCV) are highly infectious and spread rapidly through laboratory rat colonies, causing sneezing, nasal and ocular discharges, photophobia, and cervical swelling. Current diagnostic methods include serologic testing and histologic examination. During a recent rat coronavirus outbreak, we tested a rapid, noninvasive method of RCV diagnosis that involved use of reverse transcriptase-polymerase chain reaction (RT-PCR) analysis to detect RCV RNA on cages housing infected rats.

METHODS: The RT-PCR was used to detect RCV RNA in tissues from infected rats and on cages housing infected rats and to amplify portions of the RCV N, M, and S genes for molecular characterization.

RESULTS: The RT-PCR detected RCV RNA on cages and in tissues from infected rats. The RCV-NJ N gene is most closely related to the MHV-Y N gene. The M proteins of RCV-NJ and RCV-SDA are 99% homologous, and the six RCV S protein fragments are 97 to 100% homologous.

CONCLUSIONS: Use of RT-PCR with cage-swab specimens was capable of diagnosing RCV infection in and viral excretion from rats. Additionally, molecular characterization of the N, M, and S genes of RCV-NJ provided baseline information that can be used in performing further epidemiologic studies.

Medienart:

Artikel

Erscheinungsjahr:

1999

Erschienen:

1999

Enthalten in:

Zur Gesamtaufnahme - volume:49

Enthalten in:

Laboratory animal science - 49(1999), 5 vom: 31. Okt., Seite 506-13

Sprache:

Englisch

Beteiligte Personen:

Compton, S R [VerfasserIn]
Vivas-Gonzalez, B E [VerfasserIn]
Macy, J D [VerfasserIn]

Themen:

Comparative Study
Coronavirus M Proteins
Coronavirus Nucleocapsid Proteins
DNA Restriction Enzymes
EC 3.1.21.-
Journal Article
Nucleocapsid Proteins
Plastics
RNA, Viral
Viral Matrix Proteins
Viral Proteins

Anmerkungen:

Date Completed 23.12.1999

Date Revised 08.12.2020

published: Print

GENBANK: AF088984, AF088985, AF088986, AF088987, AF088988, AF088989, AF088990

Citation Status MEDLINE

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM104817925