If things go to hell with the CDC under Trump, fortunately public health in the US is pretty decentralized.

Here for example is Minnesota's influenza surveillance.

State public health departments vary a lot on data and ease of access. Minnesota is one of the better ones in that regard.

Likewise for wastewater surveillance Wastewaterscan and Biobot are third party wastewater surveillance networks (Wastewaterscan is more comprehensive).

And medical diagnostics provider BioFire has a network of its testing for various pathogens.