INDIANAPOLIS (AP) — State health officials say the man hospitalized in Indiana with the first U.S. case of a mysterious virus that has sickened hundreds in the Middle East is improving.

The Indiana Department of Health says in a statement late Saturday that the patient remains at Community Hospital in Munster in good condition and is “improving each day.”

The statement also says that as of Saturday, no other cases of Middle East Respiratory Syndrome, or MERS, have been identified. Representatives from the Centers for Disease Control and Prevention arrived at the hospital Saturday morning.

The man fell ill with MERS after flying to the U.S. late last week from Saudi Arabia.