3CLPRO	3-Cysteine-like Protein
EFCOV	Enteric Feline Coronavirus
EMA	European Medicines Agency
FCOV	Feline Coronavirus
FDA	Food and Drug Administration
FeLV	Feline Leukemia Virus
FIP	Feline Infectious Peritonitis
FIPV	Feline Infectious Peritonitis Virus
FIV	Feline Immunodeficiency Virus
GRADE	Grating of Recommendations, Assessment, Development, and Evaluation
MPRO	Main Protein
Nsp5	Non-structural Protein 5
Nsps	Non-structural Proteins
OR	Odds Ratio
PICO	Population, Interventions, Comparisons, Outcomes
PRISMA	Preferred Reporting Items for Systematic Reviews and Meta-Analysis
RD	Risk Difference
RR	Relative Risk
RT-qPCR	Reverse Transcription-Quantitative Polymerase Chain Reaction