Virbac Speed F-Corona Test for detection of antibodies against FCoV (Feline Coronavirus) in cats

Virbac Speed F-Corona Test for detection of antibodies against FCoV (Feline Coronavirus) in cats

Product Overview and Diagnostic Utility

Speed F-Corona is a serological diagnostic test for the detection of antibodies against Feline Coronavirus (FCoV) in cats.

• Target Species: Cats.
• Simplicity and Speed: Simple and easy to use, providing serological results for Feline Coronavirus in just 15 minutes.
• Diagnostic Function: Determines the anti-coronavirus antibody status of individual cats.
• Diagnostic Support: Provides additional evidence to reduce or support the hypothesis of Feline Infectious Peritonitis (FIP) in cats suspected of having the condition, when used alongside other complementary diagnostic evaluations (biochemical tests, hematology, effusion fluid analysis, etc.).
• Usage Restriction: For veterinary use only.

Clinical Background and Disease Profile

• Pathogen Nature: Feline Coronavirus (FCoV) is an RNA virus found in many cat environments worldwide. The initial intestinal strain infects the small intestine and typically causes no symptoms or mild enteritis.
• Pathogenic Mutation: In a small percentage of cats and under unpredictable circumstances, the virus undergoes multiple RNA mutations during replication, shifting its cellular targeting from enterocytes to macrophages. This pathogenic form causes extravascular leakage and vasculitis, resulting in Feline Infectious Peritonitis (FIP).
• Disease Nature: FIP is a fatal, complex disease that may present with effusions or immune-mediated disorders.
• Contagion and Prevalence: The intestinal coronavirus is highly contagious through fecal shedding. In multi-cat environments such as shelters, serum antibody prevalence indicating exposure can reach up to 88 percent. Following infection, shedding may continue for days or months and persist in the environment.
• Disease Incidence: The prevalence of FIP among FCoV-infected cats is low (under 10 percent), though it remains under-diagnosed due to diagnostic complexity. Young and elderly cats are at higher risk.
• Interpreting Antibodies: A positive test result indicates exposure to FCoV and subsequent antibody production; seroconversion usually occurs within 7 to 28 days following natural infection. The antibody test does not distinguish between the mild intestinal form and the pathogenic FIP form, nor does it confirm an active infection.

Indications for Use and Clinical Applications

• Speed F-Corona screens for coronavirus antibodies without differentiating pathogenicity:
• Screening new cats prior to introducing them into a group to guide the separation of exposed and unexposed individuals.
• Confirming the successful elimination of FCoV from group environments following control protocols.
• Increasing diagnostic sensitivity for FIP when performed on effusion fluids following a thorough clinical examination.
• Combining with fecal FCoV testing to help identify exposed cats that are actively shedding the virus.
• Important Diagnostic Cautions:
• A negative antibody test does not completely rule out FIP, as up to 10 percent of FIP-infected cats test seronegative due to immune complex formation (antibodies bound to virus) or localized neurological disease.
• A positive antibody test does not mean the cat has FIP.
• Test results must always be interpreted in conjunction with other diagnostic findings and clinical evaluation.

Product Specifications and Storage

Approved Sample Types: Anticoagulated whole blood, serum, plasma, or effusion fluids.

Handling Time: 2 minutes.

Time to Results: 15 minutes.

Storage Conditions: Long shelf life of 24 months stored at room temperature (between 2°C and 30°C).

Packaging: Box containing 6 tests.