I always find this type of explanation disingenuous. If an illness is precipitated by biologic factors but is maintained by psychosocial factors it is only the psychosocial factors that are relevant after there is no recovery back to health after initial infection. But it always reads like they are more reasoned in suggesting that they are inclusive of all three. This is not the case. Their view of people who continue to be ill is purely psychosocial. The trick of how they maintain the sensibility of this view is that the mind and body are one therefore it is also physical. This should suggest that the psychosocial manifestation is subject to a physical treatment.