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Covid antigen test (Kewei)

Rapid antigen test for Covid-19

Covid-19 is an acute respiratory infectious disease caused by SARS-CoV-2. The most common symptoms are coughing and fever, but sore throat, headache and muscle aches, as well as general weakness and shortness of breath, may also occur.

Nausea, conjunctivitis, swollen lymph nodes and drowsiness, change or loss of taste and smell are some of the less common symptoms of the disease.

In some people, the infection may be asymptomatic, but it can also affect the respiratory system and other systems in the human body. In severe cases, symptoms may include shortness of breath and chest pains, and the disease may require specialist medical care or hospitalisation.

Kewei Antigen Test

Clinical Evaluation Results

Sensitivity: 99.21%
Specificity: 98.51%
Accuracy: 100%

How to test yourself

  1. Bring the product, reagents and samples to room temperature (15~30°C) before use.

  2. Insert the sterilized swab in 2,5 cm into the nostril. Rotate 5 times in order to collect enough mucus. Repeat with the other nostril.

  3. Take out the extraction tube with buffer and open it.

  4. Place the specimen in the extraction buffer. Rotate the swab for approximately 20 seconds while pressing the head against the inside of the tube.

  5. Remove the swab while squeezing its head against the walls of the tube.

  6. Add 3 drops of the to the sample well and start the timer.

  7. Read the result in 15-20 minutes.

  8. Don’t read the result after 20 minutes.



1 Test cassette

1 Sterilised swab

1 Tube with extraction buffer

1 Instruction for use




Results Interpretation




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joysbio positive 1.png
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