The Ebloa virus has many different strains, but evolution and dna growth could make them very dangerous than the already are. Yes, we are close to a vaccine but if someone leaves sierra leone or guinea and nobody notices, we have a very dangerous and widespread situation of global proportions. Lets say Ebola started to raise the dead ( phsychopathic reanimation.) people wouldnt really notice in Africa, then africa would be destroyed, and the world would panic, get infected, then die off, since authorities cant really protect from the zombies. In conclusion, the Ebola virus is one of the most contagious diseases ive ever seen.
Relax! - Ebola, Cholera, Malaria and any other Infections (HIV/AIDS,Colds, Flues, etc.) and any other Diseases on Earth can be Wiped Out in less than a month, everybody will become Infinitely Healthy and by that - Immortal, for Infinite Health = Immortality (8,500 years guaranteed) - By doing just an exercise for a minute a day, that cures and prevents any Diseases, known on Earth, even Aging and Radiation Disease, for every cell of our bodies is shielded 100% from any external/internal (genetic) detrimental impact (any Viruses and any other Pathogens are killed the moment they touch us) - In less than a month everybody will become Infinitely Healthy, Radiation-Proof (fit for deep space missions) and Immortal - Like the Gods who created us humans - I will describe my Discovery to everyone, who sends me an E-check for One Million US Dollars (money can be negotiated).
You could have 99% of all people drop dead in one second and humanity would still be fine.
It wouldn't be good, but the species would definitely survive, with millions to spare.
There is no single event that can "wipe out humanity" other than the complete destruction of the entire biosphere. I don't see a measly bacterium being able to handle that challenge.