Possible norovirus outbreak linked to Yosemite National Park

Spending a day at a national park can be an exciting adventure. Reconnecting with nature is always a good time, but nearly 200 visitors to California's Yosemite National Park may have gotten a little more than they bargained for. Health officials are now investigating upwards of 170 suspected cases of norovirus linked to visitors returning from Yosemite. As NBC News reports, the vast majority of the individuals reporting norovirus-like symptoms sprung up in early January. The number of cases has...