For which of the following diseases has U.S. FDA approved the first vaccine Dengvaxia in 2019?

Correct option is B

The correct answer is (B) Dengue.

Explanation:
In 2019, the U.S. FDA approved Dengvaxia, the first vaccine to prevent Dengue for individuals aged 9–16 years who had prior infection.

Information Booster:

• Dengue:
  • Caused by the Dengue virus and spread by Aedes aegypti mosquitoes.
  • Symptoms: High fever, rash, joint pain; severe cases may lead to Dengue Hemorrhagic Fever.
• Dengvaxia:
  • Developed by Sanofi Pasteur.
  • Safe only for previously infected individuals to avoid severe reactions.
• Global Efforts:
  • WHO initiatives focus on mosquito population control through genetic techniques and Wolbachia bacteria to reduce the spread.