Antigen test - saliva

IMPORTANT NOTE: This is a product of cataloged as of "In Vitro Diagnosis", no is a ?Self-Diagnosis? product, by so much cannot be sold to private persons, but to Hospitals, Health Centers, Clinics, Laboratories, Residences of Elderly, Public Services, Mutual Risk Prevention or Companies, as long as comply the guidelines established by the Ministerial order published in the BOE of April 14, 2020, in which I know establishes that ?the realization of diagnostic tests for the detection of COVID-19 a those cases where there is a prior prescription by a optional and meet criteria established by the health authority competent. ?