The Super Ebola virus (SEBOV) is a disease mentioned in the Vault-Tec survival manual Coping With Mr. Virus! in the original Fallout. From the name alone, it can be assumed to be a mutated strain of the standard Ebola virus.
If it is anything at all like or similar to the regular Ebola virus, the Super Ebola virus would likely cause a virally hemorrhagic fever in the infected and ultimately lead to high fever shock and ultimately death much more quickly or much more severely overall than the regular Ebola virus.