There are indeed Rick and Morty comics. They're a great way for fans to immerse themselves deeper into the world of Rick and Morty. The comics sometimes explore concepts and characters that might not have been featured prominently in the show.
Rick is indeed infected in the comics. The infection adds a lot of tension and drama to the story as it affects his actions and the relationships with other characters.
In the comics, Rick isn't immune. The story progresses with him facing various challenges and threats like any other character. His survival depends on his wits and the support of the group around him.