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How Do I Know My Vaccine is Effective?

How Do I Know My Vaccine is Effective?

So far, the mass vaccination campaigns against SARS-CoV-2 are considered the most convincing solution that would ease the pressure on public health systems, and swiftly return to normal activities. Study has shown that once more than 70% of the population is immunized in each country, the health crisis could finally be brought under control.  



As the vaccine starts to roll out globally, how to measure the effectiveness of vaccine has become a major topic recently. Neutralizing antibody is the indicator that can tell the effectiveness of vaccine.  

What is neutralizing antibody?

A neutralizing antibody (NAb) is a type of antibody that is produced naturally as part of immune system responses. These antibodies inhibit the effects of or destroy foreign agents that invade the body.  


Neutralizing antibodies can be triggered by infection or vaccination. It can block the interaction between the receptor-binding domain (RBD) of the novel coronavirus spike protein with the ACE2 cell surface receptor.  Therefore, the level of Nab can be used to analyze a patient's immunity against future SARS-CoV-2 infection. In that case, if a neutralizing antibody is tested in a patient's body, it indicates that the vaccine is effectively injected.  

Why LEPU 2019-nCoV Neutralization Antibody Test Kit?  

Lepu provides three types of 2019-nCoV Neutralization Antibody Test products including 2019-nCoV Antibody Test Kit Neutralization (Fluorescence Immunochromatography), 2019-nCoV Neutralization Antibody Test kit (Colloidal Gold Immunochromatography) and 2019-nCoV Neutralization Antibody Test Kit (ELISA) for vaccine effect evaluation. They  are now in the export whitelist and eligible for distribution overseas.  

Based on different technology platforms, these three products are designed for specified needs of various usage scenarios.  


2019-nCoV Neutralization Antibody Test kit (Colloidal Gold Immunochromatography) is easy to operate, with no device required. Users can read the results in 15 minutes directly.


2019-nCoV Neutralization Antibody Test Kit  (Fluorescence Immunochromatography) is more accurate than colloidal gold, with the support of POCT Device (LEPU Fluo-800).  



2019-nCoV Neutralization Antibody Test Kit (ELISA) is designed for a professional clinical setting. It can reach a 98.61% sensitivity and a 99.11% specificity. Besides, it has a high throughput when used in conjunction with ELISA200/400.  


Lepu's development of the 2019-nCoV Antibody Test Kits strives to safeguard people's well-being at the post-vaccine period. More about the products, please visit: