<p>Useful links</p><p>Basic science</p><p>Immunogenetics The world’s most comprehensive range of freely available and up-to-date molecular databases, including the HLA system, immunoglobulins and T-cell receptors covering nomenclature and sequence information.</p><p>CD antigens Structured reviews of various protein families including the list of human cell-surface molecules assigned a CD num - ber by international workshops on leucocyte differentiation antigens.</p><p>Cytokines Up-to-date survey of literature on cytokines, including potential therapeutic implications. Encyclopaedia of cytokines linked to fully integrated dictionaries on angiogenesis, apoptosis, chemokines, etc.</p><p>Macrophage Lists freely accessible sources related to macrophages and immunology, for professionals from the Roslin Institute.</p><p>Clinical topics</p><p>Allergy and Clinical Immunology information and resources Journal for up-to-date reviews in allergy and clinical immunology.</p><p>Web page of the Division of Allergy, Immunology and Transplantation of the National Institute of Health, USA Provides succinct summaries of recent workshops and expert reports on a variety of topics in clinical immunology and allergy.</p><p>Infection data www.aidsinfo.nih.gov Provides comprehensive coverage of medical aspects of HIV infection, including immunopathogenesis, HIV clinical trials and anti-retroviral drugs; up-to-date guidelines. www.who.int/hiv/pub/en/ Provides recent publications world-wide and uptodate policies for all countries on HIV. http://esa.un.org/unpd/wpp/Excel-Data/mortality.htm United Nations overall mortality figures for all countries. www.cdc.gov/tb/publications Useful information about tuberculosis world-wide; teaching and patient information aids. Cancer www.cancerresearchuk.org/cancer-help/type/lymphoma/ Cancer Research UK site giving definitions and useful information about lymphoid malignancies as well as all other cancers.</p><p>General medical topics http://emedicine.medscape.com Covers all medical disciplines.</p><p>The Immunology Link Features comprehensive lists of links to immunology associations, journals and databases. The alphabetical list of murine gene knockouts represents excellent value as well as quick access to human gene databases.</p><p>Organizations which promote the science and practice of immunology</p><p>American Academy of Allergy, Asthma and Immunology</p><p>British Society for Immunology</p><p>British Society for Histocompatibility and Immunogenetics www.bshi.org.uk/</p><p>French Society for Immunology</p><p>British Society for Allergy and Clinical Immunology</p><p>European Society for Immunodeficiencies</p><p>Clinical Immunology Society</p><p>European Federation of Immunological Societies</p><p>Royal College of Anaesthetists Good guidelines about drug anaphylaxis and process of investigation.</p>