Allrecord rapid antigen: the UK adds 9 new symptoms to the new crown pneumoniaNine new symptoms have been added to the UK's official list of symptoms of Covid-19, in addition to a new strain of Omicron, 'Long COVID' and 'Post COVID' Have the latest data. We will review them in this report.

Nasal swab collection method: Wet the swab in normal saline. Measure the distance from the nostril to the base of the ear with a swab and mark it with your finger.