NEW : As many as 55 people died in hospital after girl 's death . Other vaccines in the works include those by Protein Sciences and Inovio , and another one by Russian scientists . Latest WHO estimates the total death toll at 55 as of Thursday . There is currently no cure or vaccine for Ebola . Scores of international companies are working on experimental vaccines .
NEW : As many as 55 people died in hospital after girl 's death . Latest WHO estimates the total death toll at 55 as of Thursday . There is currently no cure or vaccine for Ebola . Scores of international companies are working on experimental vaccines .