WHO warns of Ebola cases per week possible in West Africa by end of year . John Piot co - discovered Ebola virus in 1976 , warning about outbreak response . Piot has warned of ' unimaginable catastrophe ' if the virus becomes widespread in a mega - region .
WHO warns 10,000 Ebola cases per week possible in West Africa by end of year . Peter Piot co-discovered Ebola virus in 1976 , concerned about outbreak response . Piot has warned of 'unimaginable catastrophe ' if the virus becomes lodged in a mega-city .