Memes are the genes of cultural symbionts. They can be mutualists or parasites. Avoiding memetic parasites is what memetic immunity is all about. In my book, I classify ways in which memetic immune systems can be boosted. My classification goes something like this:
- Memetic vaccinations;
- Probiotic 'good' memes;
- Behavioural meme avoidance and prophylactic meme barriers;
- Immunity from past infections;
- Immunity from existing infections by rival memes;
Boosting memetic immunity is an important aspect of meme therapy. It is a type of memetic preventative medicine.
Memeticists have previously proposed the terms "memune" and "vaccime" to refer to concepts associated with memetic immunity. These days I find these terms to be too irregular and too cutesy.