Anyone can take a PCR test. Main reasons for seeking a test are: Concern over exposure – If anyone is worried that they have been exposed to the virus they can take the PCR test, whether this is symptomatic or asymptomatic. Concern for another – You may be in regular contact with a person who is particularly vulnerable to Covid-19 and want to check yourself for your own peace of mind. If you have Covid-19 symptoms you must isolate to protect others.