The present invention provides polynucleotide molecules encoding portions of the S protein from feline infectious peritonitis virus (FIPV). The present invention further provides polynucleotide molecules encoding the entire S protein or portions thereof from feline enteric coronavirus (FECV). The polynucleotide molecules of the present invention are useful as diagnostic reagents.

A invenção atual fornece as moléculas do polynucleotide que codificam parcelas da proteína de S do vírus infectious feline do peritonitis (FIPV). A invenção atual mais adicional fornece as moléculas do polynucleotide que codificam a proteína de S ou as parcelas inteiras disso do coronavirus enteric feline (FECV). As moléculas do polynucleotide da invenção atual são úteis como reagents diagnósticos.