Definitionen
1.NounA person infected with a pathogen who is responsible for spreading it to many other people.
2.NounA person infected with a pathogen who is responsible for spreading it to many other people.
3.NounAn event or place which leads to the spread of an infectious disease to many people.
4.NounA person or thing responsible for the widespread distribution of something regarded as dangerous or undesirable (for example, misinformation).