[Detection of feline coronavirus using RT-PCR: basis for the study of the pathogenesis of feline infectious peritonitis (FIP)]. 1996

D Fehr, and S Bolla, and A A Herrewegh, and M C Horzinek, and H Lutz
Veterinär-Medizinisches Labor, Departement für Innere Veterinärmedizin, Universität Zürich und Institut für Veternär-Virologie.

The aim of this study was to further investigate the pathogenesis and epidemiology of feline coronavirus (FCoV)-infections and among others to determine the prognostic value of a positive result in the RT-PCR for FCoV in serum samples collected from cats with abdominal signs. Viral RNA was isolated from 100 microl of serum and subsequently amplified by a nested RT-PCR using primers binding to a highly conserved region of the 3'-end of the FCoV-genome. Sixty-three serum samples collected from 62 cats with abdominal signs were examined by RT-PCR and the clinical outcome was followed up. Four of these cats with a positive PCR-result are healthy more than 70 months after the collection of the blood sample. It can be concluded that viremia with FCoV does not necessarily lead to FIP and death. With respect to diagnosing FIP, a positive FCoV-RT-PCR is of low prognostic and diagnostic value. It can not be recommended to use this assay as sole indication to euthanize cats. Further studies will have to be carried out to demonstrate if the prognostic and diagnostic value of this PCR-assay in other samples such as peripheral blood mononuclear cells is more reliable. However, this method was found to be an important tool to further study the pathogenesis and epidemiology of FIP.

UI MeSH Term Description Entries
D011237 Predictive Value of Tests In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test. Negative Predictive Value,Positive Predictive Value,Predictive Value Of Test,Predictive Values Of Tests,Negative Predictive Values,Positive Predictive Values,Predictive Value, Negative,Predictive Value, Positive
D011379 Prognosis A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations. Prognostic Factor,Prognostic Factors,Factor, Prognostic,Factors, Prognostic,Prognoses
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D002415 Cats The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801) Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001483 Base Sequence The sequence of PURINES and PYRIMIDINES in nucleic acids and polynucleotides. It is also called nucleotide sequence. DNA Sequence,Nucleotide Sequence,RNA Sequence,DNA Sequences,Base Sequences,Nucleotide Sequences,RNA Sequences,Sequence, Base,Sequence, DNA,Sequence, Nucleotide,Sequence, RNA,Sequences, Base,Sequences, DNA,Sequences, Nucleotide,Sequences, RNA
D012367 RNA, Viral Ribonucleic acid that makes up the genetic material of viruses. Viral RNA
D016133 Polymerase Chain Reaction In vitro method for producing large amounts of specific DNA or RNA fragments of defined length and sequence from small amounts of short oligonucleotide flanking sequences (primers). The essential steps include thermal denaturation of the double-stranded target molecules, annealing of the primers to their complementary sequences, and extension of the annealed primers by enzymatic synthesis with DNA polymerase. The reaction is efficient, specific, and extremely sensitive. Uses for the reaction include disease diagnosis, detection of difficult-to-isolate pathogens, mutation analysis, genetic testing, DNA sequencing, and analyzing evolutionary relationships. Anchored PCR,Inverse PCR,Nested PCR,PCR,Anchored Polymerase Chain Reaction,Inverse Polymerase Chain Reaction,Nested Polymerase Chain Reaction,PCR, Anchored,PCR, Inverse,PCR, Nested,Polymerase Chain Reactions,Reaction, Polymerase Chain,Reactions, Polymerase Chain
D016765 Coronavirus, Feline A species of CORONAVIRUS infecting cats of all ages and commonly found in catteries and zoos. Cats are often found carrying the virus but only a small proportion develop disease. Feline coronavirus and Feline infectious peritonitis virus (FIPV) are virtually the same virus in genetic and antigenetic terms, and are morphologically indistinguishable. Since they only differ in their disease potential (with FIPV causing a more serious illness), they are considered biotypes of each other. Coronavirus, Feline Enteric,FECV,FIPV,Feline Enteric Coronavirus,Feline infectious peritonitis virus,Infectious Peritonitis Virus, Feline,Peritonitis Virus, Infectious Feline,Coronaviruses, Feline,Coronaviruses, Feline Enteric,Enteric Coronavirus, Feline,Enteric Coronaviruses, Feline,Feline Coronavirus,Feline Coronaviruses,Feline Enteric Coronaviruses
D016766 Feline Infectious Peritonitis Common coronavirus infection of cats caused by the feline infectious peritonitis virus (CORONAVIRUS, FELINE). The disease is characterized by a long incubation period, fever, depression, loss of appetite, wasting, and progressive abdominal enlargement. Infection of cells of the monocyte-macrophage lineage appears to be essential in FIP pathogenesis. Infectious Peritonitis, Feline,Peritonitis, Infectious, Feline,Feline Infectious Peritonitides,Infectious Peritonitides, Feline,Peritonitis, Feline Infectious

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