France detects new COVID variant that tests missed

A new coronavirus variant is spreading in France with several patients in the region of Brittany developing symptoms of the virus.

Nice, France

What makes this stand out is that the patients tested negative with the PCR test.

Several patients had their infections confirmed with blood samples or others taken from deep in their respiratory systems after previously testing negative from the PCR tests, which are regarded as the gold-standard.

Authorities in the nation have increased their surveillance amid growing concerns about the impact of evolving variants on the fight against the pandemic.