Beta has followed Alpha and they were joined by Gamma and Delta, too, as WHO-designated Variants of Concern (VoC) of the novel coronavirus. While the world is warily tracking the spread of the Delta variant, or B.1.617.2, which was first identified in India in October last year, India itself is worried about Delta-plus. But the march of variants seemingly continues unabated and experts have in recent days said an eye must be kept on the Kappa and Lambda variants, too, both of which have been labelled as Variants of Interest (VoI) by WHO. WHAT IS KAPPA? It is a variant...
