I don't think the article ever resolves CDC (I can't find it at least), so it can be about Change Data Capture.

edit: It is about this CDC: https://en.wikipedia.org/wiki/Centers_for_Disease_Control_an...

"The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency under the Department of Health and Human Services, and is headquartered in Atlanta, Georgia.

The agency's main goal is the protection of public health and safety through the control and prevention of disease, injury, and disability in the US and worldwide."

This would actually be a great place for capturing change data....

Whether it’s data or things that can kill you, you’re guaranteed at least once delivery either way.