We report mortality events in a group of 123 common vampire bats (Desmodus rotundus) captured in México and housed for a rabies vaccine efficacy study in Madison. Wisconsin. Bat mortalities occurred in México and Wisconsin. but rabies cases reported herein are only those that occurred after arrival in Madison (n = 15). https://www.roneverhart.com/Tasoliesi-Hackman-RTL-6-levyinen-15kW/