Ebola lesser known as ebola hemorrhagic fever, can be best described as a deadly flu mainly because it can take five different forms like the flu changes every year which is why we have to have a vaccine every year because the flu has changed its genetic makeup. One of the five forms that ebola can come in is the Sudan virus which is a risk group 4 pathogen (pathogen being a microorganism that can cause disease). The first known outbreak of EVD occured due to Sudan virus in south sudan (hints the name) between June and November 1976 which in the end infected 284 and killed 151 of them. Sudan virus was first introduced as a new strain of Ebola in 1977 (specific date unknown). Then 23 years later in 2000 it was designated as Sudan ebola virus, and then 2 years later in 2002 it received a name change now named Sudan ebolavirus which the only change was making ebola and virus one word. The Sudan virus branch of ebola caused 5 other outbreaks however reaching from congo on the equator and even to uganda and in the end it would claim 405 and human lives and this was only from one strand of the virus! Tai Forest virus is another such strand of ebola. First described in 1995 two years before it’s brother Sudan virus this much less well known branch of Ebola was derived Parc National de Tai which was the name of the park where it was first discovered in Cote d’ivoire. One of the main reasons it not as well known is because it didn’t kill anyone and there was only one case of Tai Forest virus ever recorded. Our third branch of ebola is known as Bundibugyo virus. Bundibugyo is a much closer relative of ebola than our previous two branches as well as causing more deaths than the Tai Forest virus since it caused none. Bundibugyo claimed the lives of 66 people in between 2007 and 2012. The abbreviation used for Bundibugyo is BDBV and is basically uncharacterized in its molecular level. The ecology of BDBV is as of today unclear and no reservoir host has yet been identified and therefore it leaves us in the dark about how it ever entered the human body. Bats are suspected to harbor the virus since traces of the ebola virus were found in bats. For our final derivative of the ebola virus we have the Reston virus. Unlike the other forms of ebola this virus is not known to cause disease in humans however it has caused asymptomatic infections. RESTV (abbreviation for reston virus) was discovered in crab eating macaques. Due to the virus not causing disease in humans like tai forest virus it didn’t manage to kill well anyone. It did however kill a few primates causing outbreaks in the texas primate center. Later on some wildlife including pigs from farms in Manila in the philippines tested positive for the virus.