 The practice of using devices on detainees to block their vision (for example, by means of glasses blacking out their vision or blindfolding them) while they are being transported from one location to another should be abolished.28 4. Health issues  The means of transport employed for taking detainees to and from a hospital should take into account their medical condition.29  The confidentiality of medical data should be respected during transfers of detainees.30  Any practice of segregating HIV-positive detainees should be discontinued.31 28 Belgium: Visit 2017, §§ 19-20, Netherlands (Curaçao): Visit 2014, § 125, Belgium: Visit 2013, § 38 Spain: Visit 1991, § 150 30 Lithuania: Visit 2004, § 46 31 Lithuania: Visit 2004, § 46 29 4