Key indicators of COVID-19 transmission in the U.S. continue to surge amid a slowdown of vaccination and rapid spread of variants.
The country has recorded more than 34 million COVID-19 cases with over 610,000 deaths, both the highest in the world, according to data from Johns Hopkins University.
Experts say the inadequate implementation of COVID-19 control measures and the flawed system of the U.S. are the causes for its failure in containing the pandemic.
Produced by Xinhua Global Service
