Description
Antigen Covid Testing has a higher accuracy rate when the person is tested in the early stage of infection with COVID-19 when antigen level is generally the highest. So it is recommended to test on symptomatic persons within earlier days of symptom onset. Antigen levels in the later stage of infection may decrease below the detection limit.
Antigen Covid Testing are also widely used in the diagnosis of SARS-CoV-2 in many countries, helping with the screening at massive scale. The advantage of antigen covid testing is that millions of testing can be finished in just several days.
Comparison Among Different Testing Methods for COVID-19
| PCR Nucleic Acid Test | Antibody Test | Antigen Test | |
| Clinical Value | Diagnosis, gold standard | Auxiliary diagnosis | Diagnosis and screening |
| When to take the test | Early stage of infection | Late or recurrent stage of infection | Early stage of infection |
| Result time | 6 hours | 15 minutes | 15 minutes |
| Facility requirement | PCR Laboratory, complex | No special facilities needed | No special facilities needed |
| Cost | High | Low | Low |
| Sample requirement | Saliva, nasal, oral or anal swabs | Whole blood, serum & plasma | Nasal, saliva or nasopharygeal swabs or others |
| Storage | Cold chain | Room Temperature | Room Temperature |
It should be noted that a negative result can occur if the quantity of the COVID-19 antigen present in the specimen is below the detection limits of the assay, or failed to collect the COVID-19 antigen in the nasal cavity of the patient. Negative result can be confirmed with PCR testing.
Singclean Medical
COVID-19 Antigen Rapid Test Kit 20pcs/box
Materials Supplied:
1 Instruction
20 Test Kits
20 Swabs
20 Extraction Tubes and Dropper Tips
1 Bottle of extraction buffer (6 ml)
Material Required But Not Provided
Specimen collection containers
Timer
Sample and small trial order is welcomed!
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