A Study of Elaprase in Children and Adults With Hunter Syndrome (Mucopolysaccharidosis II) in India

Inclusion Criteria: * Male or female Elaprase naive participants (and who are not part of any other program at the time of study enrollment and during the study period) of any age with confirmed diagnosis of Hunter syndrome based on the following documented biochemical and genetic criteria: * Documented deficiency in iduronate 2-sulfatase (IDS \[12S\]) enzyme activity of less than or equal to 10 percent (%) of the lower limit of the normal range as measured in plasma, fibroblasts, or leukocytes (based on normal range of measuring laboratory). * A normal enzyme activity level of one other sulfatase as measured in plasma, fibroblasts, or leukocytes (based on normal range of measuring laboratory). * The participant has a documented mutation in the IDS gene. * In the opinion of the investigator, the participant or the participant's parents/guardians are capable of understanding and complying with protocol requirements. * The participant or, when applicable, the participant's parents/guardians/legal authorized representative (LAR) signs and dates a written, informed consent form and any required privacy authorization prior to the initiation of any study procedures. If the participant participating in this study is greater than or equal to (\>=) 7 years and less than (\<) 18 years of age signs and dates an assent form. * A male participant who is nonsterilized and sexually active with a female partner of childbearing potential agrees to use barrier method of contraception (…