Idaho Code § 39-603
State, county and municipal health officers, or their authorized deputies, within their respective jurisdiction, are hereby directed and empowered, when in their judgment it is necessary to protect the public health, to make examinations, or have examinations made by competent physician, of persons reasonably suspected of being infected with venereal disease, and to require persons infected with venereal disease to report for treatment to a reputable physician and continue treatment until cured, or to submit to treatment provided at public expense until cured, and also, when in their judgment it is necessary to protect the public health, to isolate or quarantine persons affected with venereal disease. It shall be the duty of all local and state health officers to investigate sources of infection of venereal diseases, to cooperate with the proper officials whose duty it is to enforce laws directed against prostitution, and otherwise to use every proper means for the repression of prostitution.
Idaho Code § 39-603