Objectives: given the scarcity of data regarding prevalence of various infectious diseases in Latin-American countries, our study aims to assess the burden of T.cruzi, S.stercoralis, HIV and viral hepatitis in Latin-American migrants, with a focus on Bolivian migrants. Methods: we performed a retrospective observational study of 565 screening evaluations on adults (≥ 18 years) carried out at our referral International Healthcare service in Barcelona. We reviewed structured clinical records and microbiological results of patients attended between February 2012 and April 2015. Results: the median 35 years old and 74% were women. Bolivian origin accounted for 87% of the screened population. We found a 48% prevalence of T.cruzi, 16% of S.stercoralis, 0.2% of HIV, 92% of HAV, 0.2% HBV and 0.2% HCV.
Monoallelic NLRC4 gain‐of‐function variants cause an inflammasomopathy with diverse clinical forms including infantile enterocolitis, recurrent macrophage activation syndrome, cold‐induced urticaria‐like lesions (or familial‐cold autoinflammatory syndrome, FCAS4), and painful subcutaneous nodules. Here, we identified a large family with six consecutive generations affected. Genetic analyses detected the heterozygous p.Ser445Pro NLRC4 variant in three patients, which has been previously reported in a Dutch family with FCAS4. We aimed to describe the clinicopathological features and the functional consequences of the detected NLRC4 variant. Patients presented an early‐onset (3 months–6 years) inflammatory disease characterized by recurrent panniculitis, fever and arthralgia. Histopathological examination showed perivascular and interstitial lymphohistiocytic infiltrates in the dermis and mixed panniculitis. Functional analysis supported the conclusion that the p.Ser445Pro NLRC4 variant leads to a constitutive activation of NLRC4‐inflammasome and increased plasma levels of IL‐18. Prompt recognition of early‐onset panniculitis through clinicopathological examination and laboratory biomarkers may allow targeted therapies.
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