Olivier Chosidow

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This work provides estimates of HZ incidence and HZ-related hospitalization and mortality rates in France, where no immunization programme has been implemented. Herpes zoster data was obtained from the Sentinelles surveillance general practitioners (GPs) network, the PMSI Data processing centre for hospital discharges and from the French National Mortality(More)
BACKGROUND Mycobacterium marinum is a nontuberculous mycobacterium responsible for skin infections. Although cases have been seldom reported, no series of M marinum infection has been recently reported and the treatment is not standardized. METHODS A national survey was conducted on culture-confirmed M marinum infections that occurred in France from(More)
Toxic epidermal necrolysis is perhaps the most formidable disease encountered by dermatologists. Uncommon but not rare, toxic epidermal necrolysis occurs in 60 to 70 persons per year in France. It remains as puzzling a disorder as it was 34 years ago, when described by Lyell. Whether or not toxic epidermal necrolysis is the most severe form of erythema(More)
OBJECTIVE To assess risk factors for erysipelas of the leg (cellulitis). DESIGN Case-control study. SETTING 7 hospital centres in France. SUBJECTS 167 patients admitted to hospital for erysipelas of the leg and 294 controls. RESULTS In multivariate analysis, a disruption of the cutaneous barrier (leg ulcer, wound, fissurated toe-web intertrigo,(More)
Bedbugs are brown and flat hematophagous insects. The 2 cosmopolite species, Cimex lectularius and Cimex hemipterus, feed on humans and/or domestic animals, and recent outbreaks have been reported in occidental countries. Site assessment for bedbug eradication is complex but can be assured, despite emerging insecticide resistance, by hiring a pest-control(More)
Pemphigus is a severe blistering condition of the skin and mucosa caused by autoantibodies directed against desmogleins, which are a type of keratinocyte adhesion protein. B cell depletion by rituximab has short-term efficacy against pemphigus. We aimed to assess the long-term course of pemphigus patients after B cell depletion and to understand the(More)
OBJECTIVE To identify the prognostic factors of bullous pemphigoid (BP). DESIGN Prospective study of patients with BP included in a randomized, controlled trial. SETTING Twenty dermatology departments in France. Patients One hundred seventy patients with BP initially treated with a 40-g/d dosage of clobetasol propionate cream (testing sample) and 171(More)
Patch testing may help to assess the culpability of a drug in an adverse reaction. Our aim was to study patch testing in severe cutaneous adverse drug reactions (ADRs) (Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), acute generalized exanthematous pustulosis (AGEP), and other cutaneous ADRs). 59 patients with cutaneous ADRs were included: 22(More)
Scabies is an ectoparasitic infestation caused by the mite Sarcoptes scabiei. Currently, S. scabiei is taxonomically divided into different varieties on the basis of host origin. Genetics-based research on scabies has been conducted, but the data on genetic diversity of populations of this mite in humans in Europe are lacking. We evaluated the genetic(More)
Erythema nodosum and pyoderma gangrenosum are the most common cutaneous manifestations in inflammatory bowel diseases (IBD). We conducted the current study to assess the cumulative prevalence of erythema nodosum and pyoderma gangrenosum in patients with IBD and to appraise their association with demographic, clinical, and prognostic factors related to IBD.(More)