SHERMAN, TX - According to the Center for Disease Control, this year there have already been 4 pediatric deaths from the flu.
Wilson N. Jones Hospital in Sherman says over the last week they've seen a surge in flu cases, from 7% to 21%.
Infection Preventionist, Barbara Moody, says flu season isn't over yet, and the virus is spreading steadily across the U.S.
Moody says Texas is at a regional high and it's widespread in Oklahoma.
She says it spreads easily, because you're contagious before you know you have it.
"That's the hard part, you don't know you're sick, and it hits like a brick wall, and it's just that it comes on so suddenly but you've been spreading it from the day before that, to anybody around you." said Moody.
Health officials urge everyone to get a flu shot, wash hands frequently, and stay home when you're sick.