There is one message state officials are trying to make known to doctors working with Ebola patients: Stay out of our state, please.

In a letter to the American Society of Tropical Medicine and Hygiene, which is holding a conference in New Orleans this weekend, state officials are asking doctors who have traveled to West Africa to treat Ebola patients to not attend.

“We do hope that you will consider a future visit to New Orleans, when we can welcome you appropriately,” said Kathy Klieber, Louisiana’s Secretary of Health & Hospitals and Kevin Davis, director of the Office of Homeland Security & Emergency Preparedness, in the Oct. 28 letter.

The letter disinvites any registrants who’ve cared for people with Ebola in the last three weeks. “InLouisiana, we love to welcome visitors, but we must balance that hospitality with the protection of Louisiana residents and other visitors,” the state officials said.

“We regret that some of our attendees may be affected by the state’s travel advisory and we request your cooperation,” the medical group said in a letter to members.

Apparently, about 3,588 people are expected to be attending the event in New Orleans. However, it is still unknown how many of those attendees have visited Ebola-infected regions like Liberia, Guinea and Sierra Leone.