Question
Why do children always get sick after receiving the measles vaccine?
Answer
The body does not just start to burn up for no reason; this is a signal that the immune system is hard at work. When certain viruses (like those that cause the common cold) invade, they need cooler environments to reproduce. During an infection, the immune system releases special substances to raise body temperature. This helps to slow down the reproduction rate and ability of the invaders. When you have a slight fever, it’s likely that your body is doing everything it can to eliminate the invaders. If you use fever-reducing medicine without distinction, you might make it harder for your immune system to defeat the invaders.