A polymerase chain reaction (PCR) test detects genetic material from a pathogen or abnormal cell sample. Ways of collecting samples include a nasal swab, a saliva swab, or taking a sample of blood.

President Anura Kumara Dissaayake today announced a relief package for persons, including school children affected by the devastating landslides and floods.

The government is changing the rules on PCR testing for people who test positive on a lateral flow test in England, Scotland and Wales. Wednesday 5 January 2022 16:54, UK Why you can trust Sky News ...

Early in the pandemic, the message from governments of all levels was crystal clear: If you have symptoms, get a PCR test. While that still largely holds true, rules about who should get tested and ...

A false claim on social media cites instructional leaflets in COVID-19 tests as evidence that they aren't accurate. The posts claim a list of 52 viruses "can cause a PCR test to give false positives." ...