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News From the Centers for Disease Control and Prevention
April 2, 2014

Yosemite Hantavirus Cases Traced to Insulated Tent Cabins

JAMA. 2014;311(13):1283. doi:10.1001/jama.2014.2865

Tent cabins built with dry wall and foam insulation to shelter winter visitors at Yosemite National Park were linked with a 2012 hantavirus outbreak at the park’s Curry Village area.

The outbreak caused 10 laboratory-confirmed infections, including 3 deaths (Núñez JJ et al. Emerg Infect Dis. 2014;20[3]:386-393). It was the largest outbreak involving Sin Nombre virus (SNV), one of more than 20 hantaviruses that cause human illness, since the 1993 outbreak in the Four Corners region where the Arizona, New Mexico, Utah, and Colorado borders meet.

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