A needle-exchange programme is like a special place where people can go if they use needles to inject medicine into their bodies, like for diabetes or other health problems. But some people use needles to inject drugs that can make them feel really good, but it can also be really dangerous.
So, the needle-exchange programme is a way for people who use needles to get clean needles in exchange for their old, dirty ones. This is important because if people keep using dirty needles, they might get sick or catch diseases from other people who have used those needles before.
The programme also helps people to stay safe and healthy by providing information about how to inject drugs the right way, and how to take care of themselves. They might also offer counselling or other support services to help people who are struggling with drug use.
Overall, a needle-exchange programme is a way to help people who use needles to stay safe and healthy, even if they are dealing with difficult problems like drug addiction.