The cleaner who tested positive for Covid-19 worked on both Green and Red zone planes on the same day. Video / Mark MitchellScientists have analysed nearly 10,000 blood samples to suggest there's been extremely few undetected cases of Covid-19 in New Zealand. They'd earlier used the same method to show how, in a group of 112 New Zealand patients, Sars-Cov-2 antibodies could linger for many months after infection. Of the total samples, the researchers identified 18 positive samples. To ensure they could be certain of their results, the team also re-confirmed positive samples using two further commercially produced spike-based assays.

Source: New Zealand Herald April 21, 2021 23:05 UTC