"Neglected Child" means any child who is not receiving the proper or necessary nourishment or medically indicated treatment including food or care not provided solely on the basis of the present or anticipated mental or physical impairment as determined by a physician acting alone or in consultation with other physicians or otherwise not receiving the proper or necessary support or medical or other remedial care recognized under State law as necessary for a child's well-being (including where there is harm or substantial risk of harm to the child's health or welfare), or other care necessary for his or her well-being, including adequate food, clothing and shelter; or who is abandoned by his or her parents or other person responsible for the child's welfare without a proper plan of care; or who is a newborn infant whose blood, urine, or meconium contains any amount of controlled substance as defined in subsection (f) of Section 102 of the Illinois Controlled Substances Act or a metabolite thereof, with the exception of a controlled substance or a metabolite thereof whose presence in the newborn infant is the result of medical treatment administered to the mother or the newborn infant. A child shall not be considered neglected for the sole reason that such child's parent or other person responsible for his or her welfare has left the child in the care of an adult relative for any period of time. A child shall not be considered neglected or abused for the sole reason that such child's parent or other person responsible for his or her welfare depends upon spiritual means through prayer alone for the treatment or cure of a disease or remedial care as provided under Section 4 of this Act. Where the circumstances indicate harm or substantial risk of harm to the child's health or welfare and necessary medical care is not being provided to treat or prevent that harm or risk of harm because such parent or other person responsible for the child's welfare depends upon spiritual means alone for treatment or cure, such child is subject to the requirements of this Act for the reporting of, investigation of, and provision of protective services with respect to such child and his health needs, and in such cases spiritual means through prayer alone for the treatment or cure of disease or for remedial care will not be recognized as a substitute for such necessary medical care, if the Department or, as necessary, a juvenile court determines that medical care is necessary. A child shall not be considered neglected or abused solely because the child is not attending school in accordance with the requirements of Article 26 of the School Code, as amended.