Minnesota health officials reported the first probable case of swine flu in the state Wednesday, and local officials closed two schools in the central Minnesota town of Cold Spring as a precaution.

Gov. Tim Pawlenty and other officials called a news conference for 9 a.m. to discuss the state’s response. Health Commissioner Sanne Magnan, State Epidemiologist Ruth Lynfield and Education Commissioner Alice Seagren were scheduled to be there.

The governor’s office said in a statement that the Minnesota Department of Health called the case “probable.” That means the MDH lab has confirmed the virus as type A H1N1 influenza.

But the governor’s office said the strain can’t be identified using lab tests available to the department. It said additional testing by the federal Centers for Disease Control and Prevention will be needed to determine if the patient had the same unusual new strain of influenza that has made people sick in Mexico, several U.S. states and other countries.

Given the way the disease has spread, state health officials had said it was only a matter of time before it showed up in Minnesota.

As a result of the probable case, local officials voluntarily closed the Rocori Middle School and St. Boniface School in Cold Spring, about 60 miles northwest of Minneapolis.

The announcement from the governor’s office gave no details on the patient and did not say whether the patient was a student or school staff member, or give the patient’s condition.

Michael Osterholm, a pandemic flu expert at the University of Minnesota, told AP Radio early detection efforts across the country seem to be working.

“I think the public health system has done a lot of work to prepare itself for the early detection of a potential pandemic flu virus in this country and I think that work is paying off,” he said.

Osterholm said he wasn’t surprised that the U.S. reported its first confirmed swine flu death Wednesday, a 23-month-old boy in Texas.

“I think over the next several days we’re going to see a number of severe cases in the United States, and that doesn’t fundamentally change anything about this disease at all,” he said.