Hantavirus is primarily spread by deer mice, which are prevalent in the Grand Canyon area. The virus can cause a host of serious, even fatal, illnesses such as hantavirus pulmonary syndrome (HPS) and hemorrhagic fever with renal syndrome (HFRS), according to the Centers for Disease Control and Prevention ( CDC ).

Cutting‑edge dating reveals driftwood high in Grand Canyon caves 55,250 years ago when a meteor’s shock wave blocked and flooded the river.

Grand Canyon’s explosive gastroenteritis was a 3-month, ... the highly contagious gut-busting virus died down amid the pandemic but came roaring back as pandemic health restrictions eased.

A Grand Canyon Village resident has tested positive for the new coronavirus, marking the first publicly identified case among the small population that lives at the Grand Canyon's South Rim.

The CDC recently announced that more than 200 rafters and hikers who visited the Grand Canyon during a three-month span earlier this year ended up suffering from acute gastroenteritis.

Hundreds of visitors to the Grand Canyon over the summer were sickened by a norovirus, which prompted the CDC to take a look at it. (Story aired on Weekend Edition Saturday on Sept. 24, 2022.)