<prompt> tafsiri zifuatazo kutoka kwa swahili hadi kiingereza.kufikia 2011, watu milioni 235-300 walikuwa wameathiriwa ulimwenguni,1415 ikijumuisha takribani vifo 250,000.15  <response>: as of 2011, 235-300 million people were affected globally, including about 250,000 deaths. 