View source

Moon: If you have a mooncurse which is different to the form you are in you will be forced to change into your moon-curse form, unless you have taken the right dose of deadly nightshade, or had it suppressed when you were young. It is harder to supress as you are older or after the change because you need more of the active element in deadly nightshade to suppress the change. This means it becomes more likely to poison a were.

Infliction: This is not so much inflction as triggering. It requires quite a remarkable set of circumstances but it does happen. The were must be of the same type (A were-ferret could trigger a were-skunk, but not a were-cat). The triggering were must also be feral and have the same mooncurse. This overrides suppression by deadly nightshade

Parental trigger: This in Elled has become the most common method A parent uses a small amount of magic to charge their offsprings blood. This enables the transformation to take place in a controlled way. Not as much magic is need as for infliction though

Technical triggering: If a were is changed out of the shape they have they spring back to their mooncurse form. Not many are missed but some are.

Ironically Jane Stewart triggered herself by using Bastian magic which acted as a combination of infliction and parental triggering.