Why the COVID-19 variants are so dangerous and how to stop them spreading
- Written by Michael Plank, Professor in Applied Mathematics, University of Canterbury
Shutterstock/Lakeview ImagesWith new, more infectious variants of COVID-19 detected around the world, and at New Zealand’s border, the risk of further level 3 or 4 lockdowns is increased if those viruses get into the community.
These include a variant called B.1.1.7 that has spread very quickly within the UK, with other new variants now...





