Coronavirus infections in Asia have passed 100 million, according to a Reuters tally, as the region records a resurgence in cases, dominated by the BA.2 Omicron sub-variant.

The region is reporting over one million new Covid-19 cases about every two days, according to a Reuters analysis. With more than half of the world's population, Asia contributes 21 per cent of all reported Covid-19 cases.

The highly contagious but less deadly BA.2 sub-variant of Omicron has pushed the figures to greater highs in recent weeks in countries such as South Korea, China and Vietnam. BA.2 now represents nearly 86pc of all sequenced cases, according to the World Health Organisation.