So... we figured that this was coming since the end of issue 165. However, some held onto the hope that it was a bullet graze and not a walker bite. Unfortunately, it was a bite. That should have been obvious after Andrea collapsed at the end of 166.
Issue 167 was double length and very somber. The entire issue focused on Andrea's death. Many people came in to say goodbye to her (even Negan for God's sake) and Rick was asked not to cry but still broke down. Andrea died and turned. Rick struggled to put her down.
At the end, Rick went outside to look for Carl and found him standing out there with all of Rick's friends. They joined each other