Governments around the world are stepping up their efforts to combat the coronavirus pandemic.
But the spread of the more contagious variants is posing a new challenge – and some countries are turning to technology for a possible solution.
France and Italy are introducing so-called health passes, which are digital or paper certificates that show if someone has received at least one jab, has tested negative or has recently recovered from COVID-19.
Although a majority say they support the system, thousands have rejected it, saying it is an infringement of their basic rights.
So, should people worry?
Presenter: Sami Zeidan
Brendan Gutenschwager – Independent reporter covering the health pass protests across Europe
Oksana Pyzik – Lead at the global citizenship programme on outbreaks of infectious diseases at University College London
Gabriel Scally – Visiting professor of public health at the University of Bristol and a Member of the Scientific Advisory Group for Emergencies