HOOKSTOWN, Pa. (AP) — High school students who have tested positive for hepatitis A may be the first people to contract the virus from victims of an outbreak at a nearby Mexican restaurant.

State health officials said they will know Monday or Tuesday whether the latest cases, involving an unspecified number of high school students, are the first secondary cases tied to the largest known hepatitis A outbreak, which was confirmed last month at a Chi-Chi's restaurant about 25 miles northwest of Pittsburgh.