[Outbreak of cutaneous leishmaniasis in military population coming back from French Guiana]. / Epidémie de leishmaniose cutanée chez des militaires de retour de mission en Guyane.

BACKGROUND: An outbreak of cutaneous leishmaniasis occurred among 71 soldiers who had participated in various missions during a 4-month's period in French Guiana. The aims of this study were (i) to describe outbreak and (ii) to determine risk factors of cutaneous leishmaniasis. METHODS: All patients were hospitalised. Cutaneous lesions were biopsied and cultured for species identification. Individual information was collected by a physician or a nurse, using on a standardised, anonymous chart. Data were processed with EpiInfo 6.04 and SAS. RESULTS: Mean age of the 71 soldiers was about 25.9 years (19-37 years). Twelve soldiers presented 56 lesions due to Leishmania (Viannia) guyanensis (attack rate = 16.9 for 100). Among 56 lesions, 13 lesions were localized on the trunk, usually an unexposed body area. Logistic regression highlighted military exercises in the forest during a high risk period of leishmaniasis transmission (OR = 11.2; p < 0.01), and the young age (OR = 1.33; p = 0.04). Vector control measures were not statistically significant. CONCLUSION: Military authorities should restrict deep forest activities during periods of high risk transmission. Vector control measures are essential. Officers should motivate their soldiers and supervise vector control measures. As ecotourism is developing, tourists as well as workers staying in deep forest must be informed of the risk and about vector control measures.

Severe endocrine and nonendocrine manifestations of the McCune-Albright syndrome associated with activating mutations of stimulatory G protein GS.

McCune-Albright syndrome (MCAS) is a sporadic disease classically including polyostotic fibrous dysplasia, café au lait spots, sexual precocity, and other hyperfunctional endocrinopathies. An activating missense mutation in the gene for the alpha subunit of GS, the G protein that stimulates cyclic adenosine monophosphate formation, has been reported to be present in these patients. The mutation is found in variable abundance in different affected endocrine and nonendocrine tissues, consistent with the mosaic distribution of abnormal cells generated by a somatic cell mutation early in embryogenesis. We describe three patients with MCAS who had profound endocrine and nonendocrine disease and who died in childhood. Two of the patients were severely ill neonates whose complex symptoms did not immediately suggest MCAS. A mutation of residue Arg201 of GS alpha was found in affected tissues from all three children. A review of the literature and unpublished case histories emphasizes the existence of other patients with severe and unusual clinical manifestations. We conclude that the manifestations of MCAS are more extensive than is generally appreciated, and may include hepatobiliary disease, cardiac disease, other nonendocrine abnormalities, and sudden or premature death.