More funding is needed to control the outbreak.
Roughly 100 new cases are being reported each day.
The director of the WHO says more healthcare workers are needed.
60% to 70% of deaths are still occurring in the community.
The outbreak in DR Congo has surpassed 4,000 cases and shows no signs of slowing.
Two vaccine candidates have now entered phase 1 trials.
More than 1,600 deaths have been reported in the outbreak, which is the largest ever recorded in the country.
Only 9 of the 400 bills became law, and no state eliminated childhood immunization requirements.
The death toll in the DR Congo has surpassed 1,500, government officials say.
The trial is assessing the safety and immune response of an investigational vaccine targeting Bundibugyo virus.
