moose are a reservoir for Bartonella spp. and that deer keds act as vectors for Bartonella bacteria infections.

Norway sees a rise in a parasite infection spread by Keds. No, not the shoes but a louse fly parasite that carries the Bartonella bacterium:

"A high moose population density and mild autumn weather result in a higher prevalence of deer keds (louse fly parasite)." 

"The parasite sucks blood, principally from cervids (moose, roe deer and red deer), but it also attacks humans and other livestock."

"Whereas moose outside the distribution range of the ked were infected with only one type of Bartonella bacterium, moose inside the distribution range were infected with two different Bartonella bacteria.



 These findings indicate that moose are a reservoir for Bartonella spp. and that deer keds act as vectors for Bartonella bacteria infections. However, it is not yet clear to what degree these bacteria can cause disease.""

http://phys.org/news/2013-06-blood-sucking-deer-keds-norway.html#jCp