For this What’s new in clinical dermatology?, I have selected some important publications mainly in the field of the infectious dermatosis and drugs allergy. The Chikungunya virus which is responsible of several epidemics since 2005 seems to be a virus with a cutaneous tropism. Sexually transmitted diseases are still a public health problem and we shall review the situation for syphilis, lymphogranuloma venereum and the new dynamic profile of HIV in France.
Lyme disease has been the subject of consensus conference in France and in the United States. Original clinical presentations in relation with infectious agent will be also presented. We shall give a large place to what I call the toxidermatology. During the year 2007, the role of gadolinium in the nephrogenic systemic fibrosis has been confirmed, many publications have reported the side effects of biotherapies on the skin and we shall emphasize the paradoxical of some of them. Hypersensitivity syndrome and notably the controversial role of viral reactivations has been reported. The relationship between psoriasis and metabolic syndrome or cardiovascular risks has been discussed since 2006. New clinical features have been described and will be presented during this session.