COVID Antibody Test SARS-CoV-2 Neutralizing Ab Rapid Test Kit
COVID Antibody Test SARS-CoV-2 Neutralizing Ab Rapid Test Kit
Features for COVID Antibody Test kits Neutraliazing AB Rapid Test
A. Blood test, finger whole blood is feasible.
B. Detection of Limit: Cutoff：100ng/ml, Detection range：50~5000ng/ml
C. Small specimens are required. Serum, plasma 10ul or whole blood 20ul is enough.
Characteristics of rapid detection technology for colloidal gold
1. Convenient operation: the operation steps are sample, no special equipment is required, the sample does not need special processing, the test results can be directly interpreted with the naked eye, and there is no special skill requirement for the operator
2. Fast and quick: only 10-15 mins will produce results. While other methods such as ELISA require 1-2 hours， PCR takes longer.
3. Strong specificity: because the technology is mostly labeled with monoclonal anyibodies, it determined that it only detects a certain antigenic determinant, so it has very good specificity.
4. The sensitivity is accurate
5. Convenient to carry: since the colloidal gold labeling protein is a physical binding process, the binding is firm and rarely causes changes in protein activity. Therefore, the reagent is very stable and not affected by externnal factors such as temperature. It can be carried with you for monitoring at any time.
6. Safety and environmental protection: Compared with other detection methods, immune colloidal gold technology greatly simplifies the operation. No harmful substances such as radioisotopes and o-phenylenediamine are involved in the test, so it will neither harm the health of the operator nor pollute the environment. , Has the safety that can’t be compared with the detection methods such as radioisotope or enzyme label.
Authorized certifications for Neutralizing AB Antibodies rapid test
CE Approved
China’s white list approved Neutralizing Antibody Rapid Test
Test Procedure
Reader of Result
Quality control
Internal program control is included in the test. The colored lines appearing in the control area (C) are internal program control. It confirms sufficient specimen volume and correct procedure technique.
This kit does not provide control standards; however, it is recommended that positive and negative controls be tested as a good laboratory procedure to confirm the test procedure and verify proper test performance.
Performance characteristics
Relative Sensitivity, Specificity and Accuracy
The SARS-CoV-2 Neutralizing Antibody Rapid Test (COVID-19 Ab) has been evaluated with specimens obtained from a population of positive and negative specimen. Results were confirmed by a commercial SARS-CoV-2 Neutralization Antibody Detection Kit (ELISA kit, cutoff 30% signal inhibition).
| Method | A commercial SARS-CoV-2 Neutralization Antibody Detection Kit (ELISA kit) | Total Results | ||
| SARS-CoV-2 Neutralizing Antibody Rapid Test (COVID-19 Ab) | Results | Positive | Negative | |
| Positive | 32 | 0 | 32 | |
| Negative | 1 | 167 | 168 | |
| Total Result | 33 | 167 | 200 | |
Relative Sensitivity: 96.97%（95%CI：83.35%～99.99%）
Relative Specificity: 100.00%（95%CI：97.29%～100.00%）
Accuracy: 99.50%（95%CI：96.94%～99.99%）
IMMUNOBIO Neutraliazing antibody semi-quantitative Rapid Test is a rapid test for detection of the neutralizing antibodies to the SARS-CoV-2 or its vaccines in whole blood, serum, or plasma.
The results if carrying COVID-19 vaccination are expected to be like below.
- Before first dose: Negative by rapid test
- 3 weeks after first dose: weak or middle positive
- 1 week after second dose: middle or high positive
- 2 weeks after second dose: middle or high positive
Precautions before children’s new coronavirus vaccination
(1) Children should be accompanied by a guardian or consignor to vaccinate against the new coronavirus. Do not have an empty stomach on the day of vaccination, wear a mask, wear loose clothing, and carry the ID card or household registration book of the vaccinator.
(2) Child guardians should carefully read and sign the informed consent form, truthfully provide information such as health status and vaccination contraindications, and cooperate with the vaccinators to complete information registration and informed notification.
Precautions after the child’s new coronavirus vaccination
(1) After children are vaccinated with the new coronavirus vaccine, they should be observed at the vaccination site for at least 30 minutes to observe for acute allergic reactions, syncope, etc. During the observation period, no gathering or frolicking.
(2) Keep the skin clean and dry after inoculation, and avoid scratching the inoculation site with your hands. In the event of an allergic reaction, persistent fever, local redness and swelling exceeding 2.5 cm, special physical discomfort or persistent disease state, you should seek medical attention in time and report to the vaccination unit. Avoid excessive pressing and irritation when bathing, and keep the area clean after bathing.
(3) After being vaccinated with the new coronavirus vaccine, you can exercise and eat normally, but avoid strenuous exercise and contact with known allergens. Pay attention to rest, ensure adequate sleep, and don’t stay up late.
(4) Avoid suggesting and inducing adverse reactions to children, and closely observe physical conditions and changes in body temperature. If fever persists or serious adverse reactions occur, report to the vaccination site and seek medical attention in time.
(5) The new coronavirus antibody test used clinically is different from the neutralizing antibody titer detected by the virus neutralization test. It is not recommended to use clinical antibody test to determine the effectiveness of vaccination. The positive IgM and IgG antibodies produced after the new coronavirus vaccination does not affect the clinical diagnosis of new coronary pneumonia. The clinical diagnosis of new coronary pneumonia should be performed in accordance with the relevant diagnostic standards of the National Health Commission.
(6) After vaccination, you still need to observe various prevention and control measures, do personal prevention and control, consciously wear a mask, wash your hands frequently, ventilate frequently, gather less, and maintain a safe social distance.