Covid-19 information in Gujarati: How do vaccines work?
The first-ever Covid vaccine has been approved for use in the UK and inoculations could start this month.
The UK government says certain groups will get the vaccine first, including people with underlying health conditions, those working in hospitals and older people.
But there have also been fears about the safety of these vaccines and the speed of the roll-out.
Dr Komal Badiani explains in Gujarati what you need to know about vaccines.