WHO warns 10,000 Ebola cases per week possible in West Africa by end of year . ` We did not correctly diagnose his symptoms as those of Ebola . The World Health Organization says the number could reach 20,000 a week, but it is not clear how many people will be infected with Ebola. Piot has warned of 'unimaginable catastrophe ' if the virus becomes lodged in a mega-city .
WHO warns 10,000 Ebola cases per week possible in West Africa by end of year . The World Health Organization says the number could reach 20,000 a week, but it is not clear how many people will be infected with Ebola. Piot has warned of 'unimaginable catastrophe ' if the virus becomes lodged in a mega-city .