Two more states are reporting they are now part of the escalating measles outbreak across the U.S.

Oklahoma health officials on Tuesday reported two cases of the highly contagious infectious disease in the state while health officials more than 1500 miles northeast in Vermont reported one confirmed case of the virus there.

The two cases in Oklahoma are being reported to the Centers for Disease Control (CDC) as probable cases “due to exposure associated with the Texas and New Mexico outbreak” and because the victims are experiencing symptoms consistent with measles, the Oklahoma State Department of Health said.

The state agency did not release the age of the two individuals or where they are located but said there is no public health threat associated with the cases.