Registered nurse Michelle Newbury, left, and physician assistant Scott Fillman meet with patients, not pictured, in a tent set up for a people with flu symptoms, just outside the emergency entrance at the Lehigh Valley Hospital Thursday, Jan. 10, 2013, in Allentown, Pa. The Pennsylvania Department of Health designated flu as now "widespread" throughout the commonwealth. There have been more than 11,000 laboratory-confirmed flu cases in the state since the flu season began in mid-December. (AP Photo/Matt Rourke)

Associated Press
Registered nurse Michelle Newbury, left, and physician assistant Scott Fillman meet with patients, not pictured, in a tent set up for a people with flu symptoms, just outside the emergency entrance at the Lehigh Valley Hospital Thursday, Jan. 10, 2013, in Allentown, Pa.  The Pennsylvania Department of Health designated flu as now "widespread" throughout the commonwealth. There have been more than 11,000 laboratory-confirmed flu cases in the state since the flu season began in mid-December. (AP Photo/Matt Rourke)
Registered nurse Michelle Newbury, left, and physician assistant Scott Fillman meet with patients, not pictured, in a tent set up for a people with flu symptoms, just outside the emergency entrance at the Lehigh Valley Hospital Thursday, Jan. 10, 2013, in Allentown, Pa. The Pennsylvania Department of Health designated flu as now "widespread" throughout the commonwealth. There have been more than 11,000 laboratory-confirmed flu cases in the state since the flu season began in mid-December. (AP Photo/Matt Rourke)
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