Thousands of people marched through London on January 22 against vaccine mandates. Workers in the country's National Health Service (NHS) are required to be vaccinated by April. The need for a delay between jabs mean the process of firing what could be more than 70,000 as-yet unvaccinated staff could begin on 3 February. The crowd included NHS staff, people concerned about civil liberties, and so-called anti-vaxxers.