Okla. Stat. tit. 63, § 63-1-529
Investigations by health officers
All local health officers shall use every available means to
ascertain the existence of, and to investigate all cases of,
sexually transmitted infection (STI) within their respective
jurisdictions, and to ascertain the sources of such infections; and
shall make examination of any person reported two or more times as a
suspected source of an STI.