The rapid spread of the delta coronavirus variant has forced a growing number of countries to reimpose lockdowns and other public health restrictions, raising fears that the more contagious strain was hampering global efforts to contain the pandemic.
Coronavirus
Washington Post: Spread of delta variant prompts new restrictions worldwide

Tables and chairs sit empty along the water in Circular Quay, usually full of visitors at the weekend, in central Sydney on June 27, 2021, on the first full day of a two-week coronavirus lockdown to contain an outbreak of the highly contagious Delta variant.