Locating Ebola host animal

[JOHANN72 at IDA.RUC.DK]

It seems, that a lot of the effort about finding the ebola host animal 
is used on the Kitum Cave. Has it ocurred to anyone, that the fact that 
two of the infected persons actually went into Kitum Cave could be 
nothing but a coincidence? Kitum Cave is apparently a very popular sight 
in Kenya, i have a friend, who actually went to visit it (he didn't 
catch Ebola, though). Maybe the researchers should concentrate on 
something else.