The world could see a new infection-based passport system "within months", with only those immune to coronavirus permitted to travel.
Covid-19 has spread with terrifying speed across the world in recent months, forcing nations to seal their borders and putting the tourism industry in serious jeopardy.
Even once the UK has managed to contain its own outbreak, travelling to other countries will be extremely difficult as they may still have infectious cases which could cause a second wave of transmission.
London-based futurist and former smartphone industry leader David Wood believes the only solution is an entirely new passport system based on people's health status.