Patient Zero

It should have been a relaxing day of R & R for Ethan Marston, but when he finds a drowning woman while out boating near Tybee Island, relaxation is out the window. And it all gets worse when, after rescuing the woman, she suffers from violent outbursts before dying of her mystery ailment. When Ethan reports the death, he discovers that this woman isn't the only afflicted person, and each one is testing positive for rabies. Things get curiouser when Ethan is called in for a new MBLIS case in Cancun, where an almost identical scenario is playing out.
Now, it's up to Marston and Holm to uncover the terrible truth behind the mysterious illness, as well as the connection between Tybee Island and Cancun, before they find more dead bodies in their wake.