“Whilst it is true that Article 3 has been more commonly applied by the Court in contexts in which the risk to the individual of being subjected to any of the proscribed forms of treatment emanates from intentionally inflicted acts of the public authorities or non-state bodies in the receiving country …, the Court has, in the light of the fundamental importance of Article 3, reserved to itself sufficient flexibility to address the application of that Article in other contexts which might arise. It is not, therefore, prevented from scrutinising an applicant’s claim under Article 3 where the source of the risk of proscribed treatment in the receiving country stems from factors which cannot engage either directly or indirectly the responsibility of the public authorities of that country, or which taken alone, do not in themselves infringe the standards of that Article. To limit the application of Article 3 in this manner would be to undermine the absolute character of its protection.”
“42 …. Aliens who are subject to expulsion cannot in principle claim any entitlement to remain in the territory of a Contracting State in order to continue to benefit from medical, social or other forms of assistance and services provided by the expelling State. The fact that the applicant's circumstances, including his life expectancy, would be significantly reduced if he were to be removed from the Contracting State is not sufficient in itself to give rise to breach of Article 3. The decision to remove an alien who is suffering from a serious mental or physical illness to a country where the facilities for the treatment of that illness are inferior to those available in the Contracting State may raise an issue under Article 3, but only in a very exceptional case, where the humanitarian grounds against the removal are compelling. In the D. case the very exceptional circumstances were that the applicant was critically ill and appeared to be close to death, could not be guaranteed any nursing or medical care in his country of origin and had no family there willing or able to care for him or provide him with even a basic level of food, shelter or social support. “43. The Court does not exclude that there may be other very exceptional cases where the humanitarian considerations are equally compelling. However, it considers that it should maintain the high threshold set in D. v. the United Kingdom and applied in its subsequent case-law, which it regards as correct in principle, given that in such cases the alleged future harm would emanate not from the intentional acts or omissions of public authorities or non-State bodies, but instead from a naturally occurring illness and the lack of sufficient resources to deal with it in the receiving country. 44. Although many of the rights it contains have implications of a social or economic nature, the Convention is essentially directed at the protection of civil and political rights (Airey v. Ireland, judgment of9 October 1979 , Series A no. 32, § 26). Furthermore, inherent in the whole of the Convention is a search for a fair balance between the demands of the general interest of the community and the requirements of the protection of the individual's fundamental rights (see Soering v. the United Kingdom, judgment of7 July 1989 , Series A no. 161, § 89). Advances in medical science, together with social and economic differences between countries, entail that the level of treatment available in the Contracting State and the country of origin may vary considerably. While it is necessary, given the fundamental importance of Article 3 in the Convention system, for the Court to retain a degree of flexibility to prevent expulsion in very exceptional cases, Article 3 does not place an obligation on the Contracting State to alleviate such disparities through the provision of free and unlimited health care to all aliens without a right to stay within its jurisdiction. A finding to the contrary would place too great a burden on the Contracting States. 45. Finally, the Court observes that, although the present application, in common with most of those referred to above, is concerned with the expulsion of a person with an HIV and AIDS-related condition, the same principles must apply in relation to the expulsion of any person afflicted with any serious, naturally occurring physical or mental illness which may cause suffering, pain and reduced life expectancy and require specialised medical treatment which may not be so readily available in the applicant's country of origin or which may be available only at substantial cost.”