affirmative (asserting that something is true) / positive (greater than zero) / positive (having more protons than electrons) / positive (characterized by constructiveness or influence for the better) / optimistic / positive (describing the primary sense of a word; not comparative or superlative, not augmentative or diminutive)

(formal) yes

A positive (blood type)

HIV positive (infected by the HIV virus)

masculine plural of positivo

masculine plural of HIV positivo