What’s the science behind the search? Hunting for variants requires a concerted effort. South Africa and the UK were the first big countries to implement nationwide genomic surveillance efforts for SARS-CoV-2 as early as April 2020.
Variant hunting, as exciting as that sounds, is performed through whole genome sequencing of samples that have tested positive for the virus.
This process involves checking every sequence obtained for differences compared to what we know is circulating in South Africa and the world.
When we see multiple differences, this immediately raises a red flag and we investigate further to confirm what we’ve noticed.