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Features
Rapidly tests for an active COVID-19 infection
Carried out by collecting oral swabs (saliva) - no swab required
Visual, easy to read result in just 15 minutes
98.1% accuracy
High sensitivity and specificity
A unique, non-invasive method of 2019-nCoV antigen testing. You can perform this "lollipop test" V-chek 2019-nCoV Ag Saliva Rapid Test Card (Immunochromatography) yourself at home, at work, at school, in fact anywhere. Just put it in your mouth, then snap it into the case and you'll know the result in 15 minutes.
This unique "lollipop test" test on the Covid 19, V-chek 2019-nCoV Ag Saliva Rapid Test Card, will delight you with its simple use, which even children can handle.
PRINCIPLE OF THE TEST
This test uses double-antibody sandwich to legally detect the antigen of novel coronavirus (2019-nCoV) in saliva samples. During detection, the gold labeled anti-2019-nCoV monoclonal antibody in the labeling pad binds to the 2019-nCoV antigen in the sample to form a complex, and the reaction complex moves forward along the nitrocellulose membrane under the action of chromatography, it is captured by the anti-2019-nCoV monoclonal antibody pre-coated by the detection zone (T) on the nitrocellulose membrane, and finally a red color reaction line is formed in the T zone. If the sample does not contain 2019-nCoV antigen, a red color reaction line cannot be formed in the T zone. Regardless of whether the sample to be tested contains 2019-nCoV antigen, a red reaction line will always form in the quality control area (C).
MATERIALS AND COMPONENTS
Materials provided with the test
Ingredients | Cassette | Instructions for use | Quick Reference Instructions |
Specifications | |||
0674C4X001 | 1 | 1 | NA |
0674C4X002 | 2 | 1 | NA |
0674C4X005 | 3 | 1 | 1 |
0674C4X010 | 10 | 1 | 1 |
0674C4X020 | 20 | 1 | 1 |
0674C4X025 | 25 | 1 | 1 |
Materials required but not provided
STORAGE AND STABILITY
TEST PROCEDURE
Before test, please read the instructions carefully.
NOTE:
*When sampling, gently hold it in mouth and let saliva naturally adsorb on the sponge.
*Do not eat, drink, or smoke prior to the test for at least 30 Minutes.
*Any saliva specimen is appropriate for testing but the saliva specimen collected in the morning, before mouth rinsed, eating or drinking, is recommended
INTERPRETATION OF TEST RESULTS
This product can only perform qualitative analysis on the detection object.
Positive Result:
If both C and T lines are visible within 10 minutes, the test result is positive and valid.
Negative Result:
If test area (T line) has no color and the control area displays a colored line, the result is negative and valid
Invalid Result:
The test result is invalid if a colored line does not form in the control region. The sample must be re-tested, using a new test.
INTERNAL CONTROL
The test contains a built-in internal control in the test card. A color band appearing in the control region (C) is designed as an internal control. The appearance of the control line confirms that sufficient flow has occurred, and that the test card is working normally. If the control line does not appear within 10 minutes, it is considered an error in the test result and it is recommended to test again with the same sample and a new device.
LIMITATIONS
PERFORMANCE CHARACTERISTIC
1. Clinical Verification
The performance of Test was established with 232 sample collected from symptomatic patients, who with symptoms onset within 7 days.
2019-nCoV Saliva Ag EASY TEST | Comparative RT-PCR Test Result | ||
(Immunochromatography) | |||
Positive (+) | Negative (-) | Total | |
Detected Positive | 108 | 1 | 109 |
Detected Negative | 7 | 116 | 123 |
Total | 115 | 117 | 232 |
Sensitivity | 93.91%, 95% CI (87.97,97.02) | ||
Specificity | 99.15%, 95% CI (95.32, 99.85) | ||
Accuracy | 96.55%, 95% CI (93.34, 98.24) |
Positive results broken down by days since symptom onset:
Days since symptom onset | RT-PCR Positive (+) | 2019-nCoV Saliva Ag EASY CHECK | PPA |
(Immunochromatography) | |||
1 | 13 | 13 | 100% |
2 | 32 | 32 | 100% |
3 | 52 | 51 | 98.08% |
4 | 69 | 67 | 97.10% |
5 | 86 | 83 | 96.51% |
6 | 102 | 97 | 96.00% |
7 | 115 | 108 | 93.91% |
Positive results broken down by CT value:
2019-nCoV Saliva Ag EASY TEST | Comparative RT-PCR Method | |
(Immunochromatography) | (Positive by Ct Value) | |
Positive (Ct<=25) | Positive (25<Ct) | |
Detected Positive | 69 | 39 |
Total | 70 | 45 |
Positive agreement | 98.57% | 86.67% |
2. Limit of Detection
The experimental results show that for the virus culture concentration above 100 TCID50/mL, the positive rate of detection is greater than or equal to 95%. For the virus culture concentration of 50 TCID50/mL and below, the positive rate of detection is lower than 95%. So, the limit of detection of the Test Card is 100 TCID50/mL.
3. Cross-reactivity
Cross-reactivity of the test card was evaluated. The results showed no cross reactivity with the following specimen.
4. Interference Substances
The test results do not be interfered with the substance at the following concentration:
5. Precision
1. Test 10 replicates of negative and positive by using the reference materials of enterprises. The negative agreement and the positive agreement were 100%.
2. Test three different lots kits including positive and negative reference materials of enterprises. The negative results and the positive results were 100%
6. Hook Effect
The Test Card was tested up to 1.6 × 105 TCID50/ml of heat-inactivated 2019-nCoV strain and no high-dose effect was observed.
PRECAUTIONS
KEY TO SYMBOLS USED
![]() | Materials Included | ![]() | Test Cassette | |||
![]() | Instructions for Use | ![]() | Date of | |||
Manufacturer | ||||||
![]() | Consult Instructions | ![]() | Do Not Reuse | |||
For Use | ||||||
![]() | Store at 2°C~30°C | ![]() | Catalogue Number | |||
![]() | Expiration Date | ![]() | Keep away from Sunlight | |||
![]() | Manufacturer | ![]() | Tests per Kit | |||
![]() | Lot Number | ![]() | In Vitro Diagnostic Medical Device | |||
![]() | Keep Dry | |||||
![]() | Guangzhou Decheng Biotechnology Co., LTD | |||||
Room 218, Building 2, No.68, Nanxiang Road, Science City, Huangpu District, 510000, Guangzhou P.R.China | ||||||
TEL:+86-020-82557192 | ||||||
sales@dochekbio.com | ||||||
www.dochekbio.com | ||||||
![]() | CMC Medical Devices & Drugs S.L. | ![]() | ||||
C/ Horacio Lengo Nº 18, CP 29006, | ||||||
Málaga, Spain |