China's zero-Covid rollback: Changes bring relief but also anxiety over spread

China has now relaxed many of its Covid restrictions, removing requirements for PCR tests in many places and allowing people to isolate at home. The new measures come following a wave of anti-lockdown protests. Although the changes have been welcomed, there's also concern that Covid will spread among a population where many elderly people are not vaccinated. FRANCE 24's former Hong Kong correspondent Oliver Farry gives us his insight into the situation.