science

Positive Covid result from rapid test to be confirmed with PCR amid hunt for new variants


The government is to use standard PCR testing to confirm positive Covid-19 results returned via rapid, on-the-spot tests which are now being used by millions of people every day across the UK.

This comes as part of efforts to quickly detect new and emerging “variants of concern”, some of which are partially capable of evading immunity triggered by infection or vaccination.

For those people who test positive via a lateral flow device (LFD), which is capable of returning a result in 30 minutes, the result will then be cross-checked using a PCR test.

These are more accurate than the LFDs and also make use of new technology, known as genotype assay testing, which could halve the time it takes to identify if a positive Covid test is caused by a variant of concern.

This will allow positive cases to be traced sooner and stop the spread of variants on UK soil, the government has said.



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