FHV-Ag Feline Herpes Virus Antigen Test Kit

Catalog Number: MG-CA-R007

TL;DR — The Feline Herpes Virus Antigen (FHV-Ag) is a quantitative fluorescence immunoassay used with a Migibio Immunofluorescence Analyzer. It ships as a 10-test/box kit, a 2-year shelf life, an MOQ of 10 boxes, and a 10-minute Quick Test result. For clinical interpretation, see Feline Herpes (FHV-1): Why It Recurs and What Testing Shows.

Applications & Who It’s For

• Veterinary clinics & animal hospitals — same-visit quantitative Feline Herpes Virus Antigen (FHV-Ag) results to support diagnosis and case management.
• Shelters & catteries — intake screening and early detection and outbreak monitoring where Feline Herpes Virus Antigen (FHV-Ag) is part of the admission panel.
• Breeders & kennels — monitor infection or immunity status in breeding and boarding groups.
• Reference labs & multi-vet hospitals — batch multiple devices on the analyzer for high-throughput reporting.

See also: Feline Herpes (FHV-1): Why It Recurs and What Testing Shows.

Product Specifications

Attribute	Value
Place of Origin	China
Classification	Specific Reagents
CAT No.	MG-CA-R007
Package	Box
Appearance	Liquid
Specification	10T
Storage	Room Temperature
Shelf life	2 years
MOQ	10 boxes
Suitable for	Veterinary
Grade	Reagent Grade

Specification

10 Tests/Box Cat.No.: MG-CA-R007

Intended Use

The FHV-Ag test is a fluorescence immunoassay designed for use with an Immunofluorescence Analyzer to quantitatively determine the concentration of herpes virus antigen (FHV-Ag) in feline nasopharyngeal or ocular swabs. This test aids in the diagnosis and monitoring of feline herpes virus infections. For in vitro diagnostic use only. For professional use only.

Clinical Significance

Feline herpesvirus (FHV-1) is a highly prevalent pathogen responsible for feline viral rhinotracheitis and recurrent ocular disease. Antigen detection permits confirmation of active infection during acute outbreaks, when viral shedding is highest.

Quantitative FHV antigen results support early isolation of infected cats, reducing transmission in multi-cat environments and guiding appropriate antiviral and supportive therapy.

Test Principle

The FHV-Ag test utilizes a quantitative double antibody sandwich fluorescence immunoassay technique. The intensity of the fluorescent signal correlates with the amount of FHV-Ag captured, and the concentration is expressed in Tu/ml.

Materials

Provided: 10 individual sealed pouches, each containing: Test Device Desiccant pouch 1 ID Chip Instructions for Use 10 cotton swabs 10 tubes of FHV-Ag Sample Buffer 10 Pipette tips Required but Not Provided: Immunofluorescence Analyzer Timer Pipette Centrifuge

Storage and Stability

Store the test kit at 4–30°C until the expiration date. Perform the test at 18–28°C after opening the Test Device. Once the pouch is opened, the test should be completed within 30 minutes.

Specimen Collection and Preparation

The test can be performed with a nasopharyngeal or ocular swab. Specimen Collection: Nasopharyngeal Swab: Insert the swab into the nasal cavity and gently rotate to collect the sample. Ocular Swab: Gently swab the conjunctiva of the eye. Ideally, the test should be performed immediately after specimen collection. If the test cannot be performed within 3 hours, store the specimen at 2–8°C for up to 48 hours. For long-term storage, specimens should be kept below -20°C. Preparation for Testing: Bring all materials to room temperature before use. Thaw and mix frozen specimens thoroughly prior to testing. Do not freeze and thaw specimens multiple times. Use only clear, non-hemolyzed specimens.

Test Procedure

Refer to the Immunofluorescence Analyzer Operation Manual for complete instructions. Place the Test Device on a clean, level surface. Insert the ID Chip into the meter and click “Read ID Chip.” Ensure that the Test Device lot number matches the ID Chip number. Place the swab with the sample into the FHV-Ag Sample Buffer. Stir thoroughly and centrifuge for 1 minute (3000–5000 rpm). Pipette 100 μl of the mixed sample into the sample well (S) of the Test Device, avoiding bubble formation. Test Modes: Standard Test: Click “Standard Test,” insert the Test Device into the meter holder immediately after adding the sample, and click “Start Test.” Select sample type “Swab.” The meter will automatically countdown and display the result. Quick Test: Click “Quick Test,” start the timer immediately after adding the sample mixture, and leave the Test Device at room temperature (18–28°C) for 10 minutes. Insert the Test Device into the meter holder and click “Start Test.” Select sample type “Swab.” The instrument will automatically scan and display the result. Results are displayed on the main screen and can be printed automatically or manually by clicking “Print.”

Quality Control

Each FHV-Ag Rapid Quantitative Test includes an internal control to ensure routine quality control. This internal control is performed with each patient sample. If the internal control fails, the meter will display an error message, indicating the need for a repeat test.

Interpretation of Results

Reference Range for FHV-Ag in Feline Swabs: Detection Range:

• 4.0–640 Tu/ml Result (Tu/ml) Interpretation ≤ 8 Negative (-) 8–15 Suspected (±) 15–40 Weak Positive (+) 40–200 Medium Positive (++)

200 Strong Positive (+++) Each laboratory should establish a reference range representative of the population being evaluated.

Warnings and Limitations

This kit is for in vitro diagnostic use only. Inspect packaging and labels before use. Do not use if the pouch is damaged or if the vial appears compromised. Do not use the Test Device beyond the expiration date. Use a new pipette tip for each specimen to avoid contamination. Be aware that technical or procedural errors, as well as substances in specimens not listed, may interfere with the test and result in erroneous outcomes.