The local board shall cause an examination to be made of every person reasonably suspected, on the basis of epidemiological investigation, of having any sexually transmitted disease or infection in the infectious stages to ascertain if such person is infected and, if infected, to cause such person to be treated. A person who is under the care and treatment of a health care provider for the suspected condition shall not be subjected to such examination. If a person suspected of having a sexually transmitted disease or infection refuses to submit to an examination voluntarily, application may be made by the local board to the district court for an order compelling the person to submit to examination and, if infected, to treatment. The person shall be treated until certified as no longer infectious to the local board or to the department. If treatment is ordered by the district court, the attending health care provider shall certify that the person is no longer infectious.