PAF is listed as a  rare disease  by the Office of Rare Diseases (ORD) of the National Institutes of Health (NIH). This means that PAF, or a subtype of PAF, affects less than 200,000 people in the US population.
adjective, diviner, divinest. 1. of or relating to a god, especially the Supreme Being. 2. addressed, appropriated, or devoted to God or a god; religious; sacred: divine worship. 3. proceeding from God or a god: divine laws;
Purist (noun) one who aims at excessive purity or nicety, esp. in the choice of language. Purist (noun) one who maintains that the New Testament was written in pure Greek. Origin: [Cf. F. puriste.]