Dengue vaccine found to worsen disease symptoms

By Ben Tinker, CNN

Updated 1631 GMT (0031 HKT) December 5, 2017

Dengue virus is carried by the Aedes aegypti mosquito, the same type that can spread Zika virus. A bite from a mosquito harboring the virus can result in headaches, rashes and severe joint pains. In serious cases, it can cause internal bleeding and death.
Photos: Dengue fever: How a mosquito infected millions
Dengue virus is carried by the Aedes aegypti mosquito, the same type that can spread Zika virus. A bite from a mosquito harboring the virus can result in headaches, rashes and severe joint pains. In serious cases, it can cause internal bleeding and death.
Hide Caption
1 of 6
There is no drug for dengue. Patients must be monitored carefully for the onset of the severe form of dengue. Pictured, a nurse looks after a patient with dengue at a hospital in Manila, Philippines.