Answer: secondary level of prevention.
secondary prevention is practiced after the disease is recognized, but before it has caused suffering and disability.
Explanation:
1) primary prevention, which is practiced prior to the onset of the disease; (2) secondary prevention, which is practiced after the disease is recognized, but before it has caused suffering and disability; and (3) tertiary prevention, which is practiced after suffering or disability has been experienced, to prevent further deterioration.
Primary prevention essentially involves education programmes about the association of obstetric complications and the increased risk of schizophrenia. Secondary prevention involves intervention at the prodromal phase
Drug and psychosocial intervention is indicated as part of tertiary prevention to prevent further disability in the illness.