Ebola haemorrhagic fever in Zaire, 1976  [''This medical research published on PubMed details the cases of Ebola outbreak in 1976 that caused 280 deaths---and how it was caused by malaria injections!]  "The index case in this outbreak had onset of symptoms on 1 September 1976, five days after receiving an injection of chloroquine for presumptive malaria at the outpatient clinic at Yambuku Mission Hospital (YMH). He had a clinical remission of his malaria symptoms. Within one week several other persons who had received injections at YMH also suffered from Ebola haemorrhagic fever, and almost all subsequent cases had either received injections at the hospital or had had close contact with another case."