A healthcare associated infection is acquired when providing healthcare. When this happens in a hospital, the infection is called a hospital infection or nosocomial infection. Nowadays, the term ‘healthcare associated infection’ is most often used.
When microbes settle for a longer period of time in/on the body, multiplying without appreciable damage or discomfort, this is called colonisation or carriership. This turns into an infection as soon as disease symptoms occur. The term ‘infection’ implies microbial transmission. When an inflammation occurs, the body reacts in a certain way to the presence of microbes.
An inflammation can be caused by microbes that are already present on/in your own body. But microbes can also be transmitted by one patient to another. For instance, when healthcare providers do not disinfect their hands at the right moments. Hand hygiene is indeed the easiest and most effective way to prevent the transmission of microbes.