Experts and high-risk patients warn of Covid-19 control challenges with end of data sharing.

The end of data sharing requirements and the expiration of the federal government's public health emergency declaration could make it harder to control Covid-19, according to experts and high-risk patients. The overall state of the US public health data infrastructure is a concern, with some shared data requirements coming to an end and private projects stopping data collection. The CDC is negotiating information-sharing agreements with state and local governments and lobbying for legal power to access data from both public and private parts of the healthcare system.