Highlights
- It comes as Zimbabwe imposes an immediate national lockdown, and the UK faces calls to do the same.
- The world's second most populous country, India, will roll out a mass vaccination program as early as next week, after the regulator approved two COVID-19 vaccines.
- One vaccine is developed by Oxford University and UK-based drugmaker AstraZeneca; the other is developed by the Indian company Bharat Biotech.



