News — vaccine effectiveness

Measles is one of the most contagious viral infections, known for causing high fever, cough, a distinctive red rash, and other flu-like symptoms. It's primarily spread through respiratory droplets and can easily infect anyone who hasn't been vaccinated or developed immunity. While most people associate measles with a one-time illness, a common question that arises is: Can you get measles twice?

Typically, after recovering from measles, individuals develop lifelong immunity, preventing them from getting the virus again. However, there are rare exceptions and nuances to consider, including vaccine failure and certain immune system conditions. In this article, we’ll explore whether it’s possible to get measles more than once, how immunity works, and the role of vaccines in preventing a second infection.

Dengue fever is a mosquito-borne viral infection that affects millions of people worldwide, particularly in tropical and subtropical regions. Known for its debilitating symptoms such as high fever, joint pain, and severe fatigue, dengue can be a life-threatening condition, especially in its severe form. As the incidence of dengue continues to rise, the development of a vaccine has been a critical step in controlling its spread.

The introduction of the first dengue vaccine, Dengvaxia, marked a significant breakthrough in the fight against this disease. However, its effectiveness, safety, and appropriate usage have sparked debates in the medical community. Is the dengue vaccine truly effective, and should it be widely administered? In this article, we will explore the science behind the dengue vaccine, its effectiveness, and the key considerations for its use in global public health efforts.