Yosemite National Park Hantavirus Infection Epi Curves
Updated: November 1, 2012
Park visitors infected with Hantavirus Infection in 2012, by week of illness onset*
![Park visitors infected with Hantavirus Infection in 2012, by week of illness onset](/hantavirus/images/outbreaks/yosemite/epi-nov1.png)
*n=10 for whom information was reported as of November 1, 2012. Illnesses take an average of 2 to 3 weeks to be reported after the person becomes ill.
Previous Epi Curves
September 13, 2012: Park visitors infected with Hantavirus Infection in 2012, by week of illness onset*
![September 13, 2012: Park visitors infected with Hantavirus Infection in 2012, by week of illness onset](/hantavirus/images/outbreaks/yosemite/epi-sep13.png)
*n=9 for whom information was reported as of September 13, 2012. Illnesses that occurred after August 12, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.
September 6, 2012: Park visitors infected with Hantavirus Infection in 2012, by week of illness onset*
![September 6, 2012: Park visitors infected with Hantavirus Infection in 2012, by week of illness onset](/hantavirus/images/outbreaks/yosemite/epi.png)
*n=8 for whom information was reported as of September 6, 2012. Illnesses that occurred after August 12, 2012 might not yet be reported due to the time it takes between when a person becomes ill and when the illness is reported. This takes an average of 2 to 3 weeks.
Page last reviewed: November 1, 2012