What’s behind the Covid-19 surge in Asia? Will vaccines work?

What’s behind the Covid-19 surge in Asia? Will vaccines work?

Singapore, Hong Kong, China, and Thailand are witnessing a spike in Covid-19 cases. In Singapore, the surge in infections is driven by LF.7 and NB.1.8 — both descendants of JN.1 variant, which is a sub-lineage of the Omicron variety. JN.1 can evade immunity and is more transmissible. Is this a cause of concern?