The Wondfo COVID-19 Lateral Flow Test is one of the most accurate, non-invasive tests currently available.
The Wondfo 2019-nCoV Antigen Test is an antigen test that is to detect the presence of protein fragments (antigen) from the 2019-nCoV in nasal swab specimen.
There are different kinds of tests for diagnosing COVID-19. Molecular tests (also known as PCR tests) detect genetic material from the virus. The Wondfo 2019-nCoV Antigen Test (Lateral Flow Method) is an antigen test which detects small parts or proteins from the virus. Antigen tests are very specific for the virus but are not as sensitive as molecular tests. Another type of test is an antibody test. A COVID-19 antibody test detects antibodies that have been made by your immune system in response to a previous COVID-19 infection.
No, the disposable sterile swab is not sharp and it should not hurt. Sometimes the swab can feel slightly uncomfortable or tickly.
Swabbing both nostrils gives you the best chance of collecting sufficient sample to generate an accurate result. It has been observed in some cases that only one nostril has detectable virus, so it is important to collect from both nostrils. Correct swabbing is important to obtain a correct result.
A positive result means that you may have COVID-19 disease. Please contact your doctor for further medical suggestion. It is likely you will be asked to isolate yourself at home to avoid spreading the virus to others, wear a face mask when recommended and wash your hands regularly with soap and water. A positive result does not in any way guarantee that you are or will be immune and therefore cannot (or can no longer) become infected.
A negative result means the virus that causes COVID-19 was not found in your sample.
A negative test result does not guarantee that you do not or have never had COVID-19, nor does it confirm whether or not you are currently contagious.
Do you have cold symptoms in addition to the negative at-home test? Since the at-home test does not provide complete certainty, you should assume that you have COVID-19. You can contact your doctor to find out if another test is needed. In the meantime, try to avoid leaving your home and have as little contact as possible with others, including the people you live with. Use disposable tissues and throw them straight in the bin. Sneeze and cough into the crook of your elbow. Wash your hands regularly and wear a face mask. Are your symptoms getting worse (difficulty breathing, high fever, etc.)? Contact your doctor/health provider immediately.
The test has been shown in field clinical evaluations performed by professional health care persons to correctly identify 99.90% (963 out of 964) of 2019-nCoV negative samples (known as the test’s specificity), when compared with RT-PCR test. Further, in field clinical evaluations conducted in Germany, US and UK, the test correctly identified 98.53% (335/340) 2019-nCoV negative samples when performed by lay users, and compared with RT-PCR test. The test has also been shown in field clinical evaluations performed by professional health care persons to correctly identify 92.40% (304 out of 329) of 2019-nCoV positive samples (known as the test’s sensitivity), when compared with RT-PCR test. Further, in field clinical evaluations conducted in Germany, US and UK, the test correctly identified 92.96% (66/71) of 2019-nCoV positive samples when performed by lay users, and compared with RT-PCR test.
Among the 319 RT-PCR positive samples, when the CT≤25, the detectable rate of the test is 100% (145 out of 145); when the CT≤28, the detectable rate of the test is 98.02%(198 out of 202); when the CT≤30, the detectable rate of the test is 95.88%(233 out of 243); when the CT≤35, the detectable rate of the test is 92.83% (285 out of 307); Thereinto 468 are from symptomatic patients. The test can correctly identify 100% (161 out of 161) 2019-nCoV negative samples and 91.67% (242 out of 264) 2019-nCoV positive samples, when the specimens collected within 7 days after onset of symptoms.
Thereinto 425 are from asymptomatic patients. The test can correctly identify 100% (380 out of 380) 2019-nCoV negative samples and 95.56% (43 out of 45) 2019-nCoV positive samples, for the specimens collected from asymptomatic patients.
The detection limit of Wondfo 2019-nCoV Antigen Test (Lateral Flow Method) is 5.0×103 TCID50/mL.
It is possible for this test to give an incorrect negative (false negative) result”. This means that you could still have COVID-19 even though the test result is negative. If your result is negative and you still experience symptoms related to COVID-19，such as fever, cough and/or shortness of breath, you should seek help from your healthcare provider.
There is a very small chance that this test gives you a positive result that is incorrect however this is one of the most accurate testing kits available. so it is unlikely. If you get a positive result, you should self-isolate and seek medical help from you healthcare provider.
If there is no coloured band appears at control line (C) within 15 minutes of performing the test, then the test has not worked. You should test again, using a new test, taking care to follow the instruction.
Yes, It may affect your test result, consult your doctor, and always read the medication manufacturers’ instructions for any medication you are taking before conducting the test.
Besides, the test result will not be affected by the presence of following potentially interfering and cross-reactive substances in the specimens:
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