<prompt> tafadhali geuza maudhui haya ya swahili kwenda kwa kiingereza.shirika la afya duniani who linatarajiwa kuwaarifu viongozi kuhusu hali ya janga la covid-19 ambalo limerudisha nyuma chumi za nchi 18 zinazowakilisha zaidi ya nusu ya idadi jumla ya watu ulimwenguni na huchangia zaidi ya asilimia 60 ya pato jumla la ulimwengu.  <response>: the world health organization is expected to inform leaders about the pandemic, which has reversed the economies of 18 countries, which represent more than half of the worlds population and account for more than 60 percent of global gdp. 