An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu popping up -- but only in areas populated by farm animals.

The patient from Missouri has recovered, but health officials are still investigating how they became infected.

There is no current threat of the bird flu becoming a pandemic, but the partnership aims to prepared for any situation.

Researchers in Texas detected H5N1 in wastewater from 10 cities, but the risk to humans is currently low. Ongoing surveillance is critical to monitor any potential changes in the virus that could increase its threat to public health.