Bart put Damian down when he started struggling, though he coughed a couple more times himself and the ends of his hair were a little singed.
He looked up at the EMT's heading towards them and nodded, hiding one final cough in his shoulder before he picked Damian up again and, for all intents and purposes, disappeared.
"Where to?" Bart asked, the Speed Force around them allowing Damian to understand what the speedster was saying.