For those going to the in person ASSA in New Orleans the website is up for hotel booking. AFEE is in the JW Marriott. If you registered your immunization record and registered for the conference you should have gotten an email with the link to hotel reservations. If you clicked that link, and it keeps not coming up and showing closed..., You will need to clear your search engine history to get it to pop up. (at least I had to)
Good luck on getting rooms everybody.