KEY POINTS
  • The Australian city of Perth began a snap four-day Covid-19 lockdown on midnight Tuesday, joining Sydney and Darwin as authorities struggle to contain fresh outbreaks of the highly infectious Delta variant.
  • Residents of Perth, Western Australia's capital must stay home except for urgent reasons after officials detected a third case, linked to the outbreak in Sydney.
  • Lockdowns, swift contact tracing and strict social distancing rules have largely helped Australia keep its Covid-19 numbers relatively low, with just over 30,500 cases and 910 deaths, but its vaccine rollout has been sluggish.
Shoppers line the aisles at Costco Perth on March 19, 2020 in Perth, Australia.

The Australian city of Perth began a snap four-day Covid-19 lockdown on midnight Tuesday, joining Sydney and Darwin as authorities struggle to contain fresh outbreaks of the highly infectious delta virus variant.

Residents of Perth, Western Australia's capital, and the neighboring Peel region must stay home except for urgent reasons after officials detected a third case, linked to the outbreak in Sydney - the nation's largest state.