Responses to the West African Ebola virus epidemic being curated by the Data Science Group of the Thomas J. Watson Research Center. International Mutual Aid is a US-based 501 (c) (3) nonprofit, conducting Ebola treatment, surveillance, contact tracing, and case investigation in Kono District, Sierra Leone, during the epidemic. On 14 August, the Nigerian government said Aliko Dangote had donated $1 million to halt the spread of the Ebola virus outbreak. Facebook founder Mark Zuckerberg and his wife Priscilla Chan have announced a donation of $25 million to the CDC Foundation to fight the Ebola crisis. On 29 October a South African businessman, Patrice Motsepe, donated $1 million
The World's Billionaires 2014 years. Zara founder Amancio Ortega placed third for the second consecutive year. American investor Warren Buffett was in the top five for the 20th consecutive year, placing fourth. Oracle founder Larry Ellison rounded out the top five. America's Christy Walton was the highest ranking female, placing ninth overall. Aliko Dangote of Nigeria became the first African ever to crack the top 25, with an estimated net worth of $25 billion. 24-year-old Perenna Kei, daughter of Chinese real estate developer Ji Haipeng, was the youngest person on the list. At age 99, David Rockefeller was the oldest. Among the largest gainers