<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.zaidi ya watu 1000 wameaga dunia nchini sierra leone, liberia, guinea na nigeria katika kile kinachotajwa kuwa mlipuko mbaya zaidi wa ugonjwa wa ebola kuwai kushudiwa.  <response>: the disease has killed more than 1,000 people in guinea, liberia and sierra leone in the worlds worst outbreak of ebola, and the world health organisation has called it an international emergency. 