KNOXVILLE, Tenn. (WVLT) -- East Tennessee's second probable case of H1N1, or swine flu, will close a Knox County Elementary School.

The Knox County Health Department says the case involves a student at Blue Grass Elementary. The school and *all school-related activities are canceled for Wednesday. The district says Blue Grass will reopen Thursday.

However, just down the road, West Valley Middle School has its own probable case. But Superintendent Jim McIntyre says it will stay closed throughout the week.

Both the district and county health experts say the flu situation continues to change, and the new plan reflects that.

"We'll keep getting cases. That doesn't surprise at all," Dr. Martha Buchanan with the Knox County Health Department said.

Knox County Schools' second probable H1N1 case didn't catch the county's health experts off-guard, but it hit new parents with more worries.

"I'm pretty concerned about it," Blue Grass parent Stephanie Grubb said.

"I'm concerned, but I’m not overly concerned," Blue Grass parent Jackie Wilson said.

The Knox County Health Department announced the probable case from Blue Grass Elementary School Monday.

"We can tell you it's a student at Blue Grass," Buchanan said.

That's all Dr. Buchanan would tell Volunteer TV about the student she says got sick last week, but is recovering at home.

The health department announced a West Valley Middle School student also likely caught H1N1, or the swine flu, just a few days ago.

"Our investigation so far does not establish a link between the student case at West Valley and the student case at Blue Grass Elementary School," health department executive director Mark Jones said.

The district closed West Valley for five days so crews could wipe down desks and lockers. But Bluegrass will only close one day--Wednesday--for cleaning.

"It's proving to be a very mild type of flu," Buchanan said.

U-S health officials have stopped recommending schools close because of swine flu.

Buchanan said the county's new approach, "Protects our citizens and also minimizes disruptions."

But Superintendent McIntyre says West Valley will stay closed through this week--as announced last weekend.

"We believe the rationale given at that point in time in regards to West Valley Middle School is still relevant," McIntyre said.

"The new recommendations put a new emphasis on personal responsibility and parental responsibility," Buchanan said.

Blue Grass parents said they'll take health precautions with their kids.

"I'll definitely be keeping my kids away from crowded places, where there are lots of kids, making sure they wash their hands extra good, more than normal," Grubb said.

"Just to be careful and not to share foods," Wilson said.

The Knox County Health Department says just because the H1N1 cases in U.S. seem mild overall doesn't mean you shouldn't protect yourself.

Buchanan pointed out some 36,000 people die every year from the seasonal flu in the U.S. So she says you wash your hands frequently, cover your nose and mouth when you cough, and keep you and your kids away from others when sick. Also if you feel sick, go to the doctor.

Knox County Schools says it will evaluate how it will handle probable H1N1 cases on a school-by-school basis.