http://www.nature.com/srep/2012/121115/srep00811/full/srep00811.html
Transmission of Ebola virus from pigs to non-human primates
A study conducted in 2012 showed that Ebola was able to travel between pigs and monkeys that were in separate cages and were never placed in direct contact.
This was one of the first stories that gave me concern about transmission via the aerosol of a sneeze.