Vaccine Safety Concerns Shut Down Immunization Campaign In Philippines
It took 20 years and $1.5 billion to develop a vaccine for dengue, a deadly mosquito-borne virus. After it finally got approval in many countries, a complication has surfaced.
The world's only vaccine against dengue has hit a roadblock, and this complication is causing some countries to restrict use of the vaccine.
Sanofi Pasteur, the French company that manufactures the shot, raised new safety concerns last week about the vaccine. In response, the Philippines suspended a mass immunization campaign, which on the shot.
