Lateral-flow tests: What are the risks and benefits?
Lateral-flow tests: What are the risks and benefits? By Anthony Reuben Millions of people in England are being encouraged to take two free rapid Covid tests a week. The Lateral Flow Device (LFD) kits can be picked up from testing sites, pharmacies or sent through the post. They give results in about 30 minutes compared with around 24 hours for PCR (polymerase chain reaction) tests, which are more sensitive and have to be processed in a laboratory. What is the point of mass testing? The government says one in three people with coronavirus do not have any symptoms, so could be unknowingly spre...