But the UK didn't rely on the Sino vaccines... and they're also seeing upticks. Now, granted, they use AstraZeneca, which also has a mediocre track record, but as an industrialized nation, it's unsettling.
The U.S. reliance on mRNA vaccines for the vast majority of vaccinations—and the rejection of the AZ vaccine—appears to have spared them any major increases so far. Our vaccines appear to be better.