If you don't know how to take a PCR swab test by yourself, see the video and follow the steps as shown in this video.
NX Healthcare provides board-certified Covid-19 PCR swab test kits in the UK. If you want to order the swab kits, feel free to call at 020 8168 7100 or you can visit the website
https://www.nxhealthcare.co.uk/product/fit-to-fly-pcr-test/
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