One hundred ninety-two. All infected persons

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Contaminants are also known as infection sources, and infection sources are a more advanced term—it represents the difficulty of discovery, perception, and resistance.

Just as ghosts and resentful spirits are commonly referred to as ghosts, contaminants and infection sources are also collectively called contaminants, only distinguished when necessary.

Contaminants usually have a source which could be an object, a corpse, a book, a segment of text, and the method of infection varies; it could be through contact, reading, or sight.

The taboo abilities and contents of a contaminant will warp all existence it infects, whether it's the mind or the body. This infection generally comes with the negative effect of reducing one's Sanity Value.

Such fluctuations could be detected and alerted by a contaminant detector, which is a common method exorcists use to investigate contaminants.