A novel vaccine temporarily shielded lab monkeys from Ebola, and a booster jab provided lasting protection, according to a study Sunday that endorsed approval for tests on humans. The US National Institute of Allergy and Infectious Diseases (NIAID) announced on August 28 that human testing would start in early September following the promising results in monkeys. They claimed to be the first to demonstrate a vaccine with "durable protection" against Zaire ebolavirus, which has killed 1,841 of the 3,685 people infected in Guinea, Liberia and Sierra Leone, according to World Health Organisation (WHO) numbers. Nancy Sullivan of NIAID's Vaccine Research Center led a team that developed the vaccine based on a type of chimpanzee virus dubbed ChAd3.
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