More evidence has emerged indicating the H1N1 swine flu virus may be spreading.
    
Earlier this week, more than 100 students at a North Carolina school have been out sick - or sent home - because they were sick.
    
In just one day, more than 75 students were sent home from Bailey Elementary School in Nash County, N.C.

Many of the students had come down with flu-like symptoms.
     
It's not clear whether the swine flu is the culprit, but school officials say they're not taking any chances.

"With that big jump in my absenteeism, I was clued in definitely that something, something here wasn't right," said school nurse Tracey Rhodes.  

"Each classroom has a thermometer," she explained. "All they have to do is check their temperature. From there, if we find out they do have a fever we have a holding room."

Officials at the school are working closely with the county's health department and have warned parents to keep sick students home.