Zero-Covid policy: why is China still having severe lockdowns?

Strict measures that continue almost three years into pandemic are prompting widespread protests. Here are the factors

China's strategy of controlling Covid-19 with lockdowns, mass testing and quarantines has provoked the greatest show of public dissent against the ruling Communist party in decades.

Initially, China succeeded in suppressing the virus, but then more transmissible variants emerged, and in recent weeks the outbreak has grown with record numbers of cases reported.