Your sample will be taken to the laboratory, n examined by qualified health professionals. Results and travel certificates will be sent to you via protected email. You will get your result in 24 hrs (this does not include the weekend).
If you have Covid-19 symptoms, you need to get yourself isolated, which you can’t get out of, even if you have/are tested “negative” for a certain number of days.
Please note that travel rules are subject to vary. You should keep up to date with the Government’s instruction about travel and find out about your destination’s requirements, including any countries you are transiting, if you have a flight transfer.