Feds investigate causes of a norovirus outbreak at Yosemite National Park

Yosemite, which was established in 1864, is no stranger to high-profile outbreaks of infectious disease. In 2017, a Santa Monica middle school temporarily canceled classes after nearly 200 students were potentially exposed to norovirus there. In 2012, a deadly hantavirus outbreak put Yosemite — the heart of the Sierra Nevada economy with 5 ...