LOUISVILLE, Ky. (WDRB) -- Some students in Indiana go back to school this week, and in Kentucky, they head back in mid-August. But before heading to the classroom, all students in both states are required to be vaccinated.

"They're getting a letter mailed out this week, asking them to bring in their current immunization," said Angela Hosch, the principal Portland Elementary School.

Hosch said JCPS has been proactive when it comes to reminding parents about vaccinations.

"The big thing right now is the hepatitis vaccination," Hosch said.

Despite the reminders, Hosch suspects there will be a number of students who show up without proper vaccinations. She said they won't be sent home, at least not right away. 

"We do everything in our power to get appointments scheduled," she said. "We even get support from the family resource centers, because we want that to be the last option."

Hosch said the student are like family, and administrators will not only schedule appointments, but they will also bring health officials to the school if needed.

"When you have pockets of kids who are not vaccinated, they are the ones that are at higher risk for creating an outbreak," said Dr. Heather Felton, medical director at the University of Louisville Pediatrics Clinic at Kosair Charities.

"Kids who have cancer or on chemotherapy, kids who have had organ transplants and need certain medicines that depress their immune system, they may not be able to get every vaccine, so they rely on their classmates to get the vaccines for them."

If you are not sure what vaccinations are needed for your child, click here.

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