15 rooms at the Microtel on Plymouth Road (http://www.microtelinn.com/hotels/michigan/ann-arbor/microtel-inn-and-suites-ann-arbor-plymouth-rd-/hotel-overview).  Guests will need to make their own reservations by calling 1-800-337-0050 and giving the confirmation number (34726895).  The block is under the name "ASM Michigan branch meeting" and the rate is $80.75 per night.  The block of rooms will be released on October 8th, so any reservations should be handled by October 5th. 

10 rooms at Weber's (http://www.webersinn.com/?gclid=COD5qdTToccCFQ-PaQodkDsOnw) To make reservations under the U of M Microbiology and Immunology: MI ASM Branch Meeting Room Block go to www.webersinn.com/reservations and enter your arrival & departure dates and MIC102315 in the group code field before clicking on check availability and the rooms for this block will be available for you to reserve online or call Weber's at (734) 769-2500 make sure to ask for the “MI ASM Branch Meeting" group special "MIC102315" to receive the rate of $97 per night.  They release the block of rooms earlier, so reservations at Weber's should be handled by September 23rd.