top of page

New analysis of long-term Dengvaxia® data found differences in vaccine performance based on prior dengue infection Company will ask regulators to update product label to reflect new information PARIS, FRANCE – November 29, 2017 – Sanofi will ask health authorities to update information provided to physicians......

Many people infected by the virus a first time show few or no symptoms, but they can still contribute to the transmission of the virus if bitten by a mosquito.

Having been infected once does not protect you from the virus. In many cases, the second time you get dengue, the symptoms are more severe.

Aside from being itchy and annoying, the bite of an infected female
mosquito (Aedes aegypti or Aedes albopictus) can spread dengue,
chikungunya, or Zika viruses. People become infected with dengue,
chikungunya, or Zika after being bitten by an infected mosquito.
• Female mosquitoes lay several hundred eggs on the walls of waterfilled
containers. 

Sanofi Pasteur announced that its dengue vaccine, Dengvaxia, may lead to more severe cases of the disease in people who have not been previously infected by dengue virus.

 

The warning was relayed after the vaccine was already administered to more than 700,000 children in the Philippines

Sanofi updates information on dengue vaccine

ABOUT 2.5% OF THOSE INFECTED BY SEVERE

DENGUE DIE,
AND THERE IS NO CURE FOR THE INFECTION.

Help Control Mosquitoes that Spread
Dengue, Chikungunya, and Zika Viruses

700,000 Children

Will Suffer This Severe Vaccine Side Effect

Science

Researcher1107

bottom of page