US officials said the government is concerned about the surge of cases in China, and has raised questions about the transparency of data the country is reporting about the spread of the virus. The officials requested anonymity to discuss internal thinking.
Japan is now requiring a negative Covid-19 test upon arrival for travelers from China, while Malaysia has imposed new tracking and surveillance measures. The US is weighing similar steps, the officials said, as a way to prevent further spread.
Discontent with Covid Zero sparked protests in China, leading authorities to move rapidly toward ending those policies and three years of self-isolation from the rest of the world. Yet the speed of those changes has seen infections surge.