Key Developments:
Vaccine Tracker: More than 3.67 billion doses administered
J&J shot raises fewer antibodies against delta in study
Singapore curbs gatherings as local cases hit record
What’s a “Pingdemic” and why is the U.K. having one?
Fan-free Olympics leaves 1 million hotel cancellations
Chinese City Imposes Mandatory Tests
Nanjing, the capital of eastern Jiangsu province, now requires Covid tests for people leaving the city after Nanjing airport found nine positive samples from workers on Tuesday. The airport has cancelled flights, put relevant staff under centralized quarantine and started contact tracing.
Half of Australia in Lockdown
New cases continued to climb in Australia’s two largest cities on Wednesday as strict stay-at-home orders impacting half the nation failed to halt the spread of the delta variant.