The Omicron variant, since emerging in South Africa in November last year, spread rapidly across the globe. Now its sub-strain BA.2 is leading to increased hospitalisations. Experts say it will see slower decline in cases and prolong the Omicron wave
An Indonesian healthcare worker sprays disinfectant amid fears of another wave of the Covid-19 outbreak at a locality in Jakarta, Indonesia.(AP Photo)
A new sub-strain of the Omicron variant of coronavirus, which has been spreading rapidly across the globe, has emerged as the latest challenge in taming Covid-19. The BA.2 sub-strain has been detected in at least 57 countries, according to the World Health Organization (WHO). A leading healthcare expert has said that people need to be cautious about it.
