Coronavirus, FelineFeline Infectious PeritonitisCoronaviridaeCoronaviridae InfectionsCoronavirusCatsCoronavirus InfectionsTransmissible gastroenteritis virusCoronavirus 229E, HumanSpike Glycoprotein, CoronavirusCoronavirus, BovineSARS VirusCoronavirus OC43, HumanLeukemia Virus, FelineImmunodeficiency Virus, FelineCoronavirus, CaninePoint MutationSevere Acute Respiratory SyndromeMutation, MissenseCat DiseasesMurine hepatitis virusFeline Acquired Immunodeficiency SyndromeCalicivirus, FelineMutationInfectious bronchitis virusFeline PanleukopeniaCoronavirus NL63, HumanSarcoma Viruses, FelineMolecular Sequence DataNucleocapsid ProteinsFrameshift MutationFeline panleukopenia virusBase SequenceViral Envelope ProteinsCoronavirus, Rat