Claim: Of all the positive Covid tests of the 9,000+ students at Cambridge University tested in the week to 6 December, every single one was found to be a false positive after a second test.
Fact-check: Cambridge Covid-19 test results don't mean PCR tests are inaccurate - Full Fact
Verdict: this is correct for one week of testing. of the ten group swabs which initially tested positive, none tested positive after a second test carried out later. in previous weeks, most positive tests were confirmed by later tests.
Organisation: Full Fact
Author: Abbas Panjwani
Date published: 2020-12-11T00:00:00