Does anyone knows if a person’s immune system plays a role? There are folks that have either a weak or strong immune and hiw that may play a role whether one gets ebola or any other virus.
It attacks the immune system. More detail than you could possibly want here: https://microbewiki.kenyon.edu/index.php/Infection_Mechanism_of_Genus_Ebolavirus
Looks to me like it spreads under the radar by attacking the immune cells directly. Then when the body recognizes there is an infection it spreads by the immunoresponse into the bloodstream. A strong immune system is no guarantee of anything IMO.