What to do if you have a holiday planned and what does self-isolation involve?
If a doctor suspects a person has the virus, they will swab the person’s nose and throat and, if they are able to produce sputum, get a sputum sample and send these to a Public Health England laboratory. Scientists then amplify genetic material called RNA in the samples and look for sections that match the virus’s RNA. The test takes 24 to 48 hours. Once the result is available it is sent back to the clinician who informs the person whether they tested positive or not.