📚 How to solve these questions: 12 tips for all 6 Interactive Reading question types, with a worked example for each.
Vaccines are a very important tool for public 1. They protect us from many serious diseases. When we get a vaccine, our body learns to fight off germs without getting sick first. This is how vaccines work: they teach our immune system. First, a vaccine gives our body a tiny, safe piece of a germ, like a virus or bacteria. This piece is not strong enough to make us truly 2. Instead, it's just enough for our immune system to see it as a threat. Our immune system then starts to make special fighters called antibodies. These antibodies learn how to attack and 3 that specific germ. If we meet the real germ later, our body already knows what to do. The antibodies are ready, and they can fight the germ quickly before we get very sick. Some vaccines need more than one dose to work best. For example, some childhood vaccines require several shots over time. This helps the immune system build stronger and longer-lasting 4. Scientists work very hard to develop new vaccines. They study diseases and how germs affect our bodies. This research can take many years. They test vaccines carefully to make sure they are safe and 5 for everyone. Vaccines have saved millions of lives and prevented widespread illnesses around the world. They are one of the greatest achievements in modern medicine, helping communities stay healthy.