Poster at Pacific Symposium on Biocomputing A poster on âThe Spread of the 2014 Ebola Zaire Virus in West Africaâ was presented at the Pacific Symposium on Biocomputing (PSB), 2016. It was co-authored by M. Scotch, R. Beard, R. Pahle, A. Mubayi, S. Namilae, and A. Srinivasan.