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[Objectives] The aim of this study was to assess the immunogenicity of SARS-CoV-2 available vaccines among people living with HIV (PLWH) after a complete vaccination scheme, and determine predictors of seroconversion., [Methods] This multicentre prospective cohort study included 420 PLWH who had received a standard immunization, either with mRNA or adenoviral-vectored COVID-19 vaccines. Antibody response was evaluated within 1 to 2 months after the last dose of the vaccine with a quantitative determination of antitrimeric spike protein-specific IgG antibodies and IgG neutralizing antibodies., [Results] Overall, 384 of 420 PLWH (91%) showed antibody response to vaccination. Seroconversion was observed in 308 of 326 individuals with cluster of differentiation 4 (CD4) counts ≥350 cells/mm3 (95%), 55 of 61 PLWH with 200 to 349 cells/mm3 (90%), and 21 of 33 PLWH with CD4 counts, [Discussion] HIV-related immunosuppression impairs the antibody response to SARS-CoV-2 vaccines. Specific vaccination schemes should be urgently tailored in this setting, particularly in patients with CD4 cell counts, This work was supported, in part, by the Spanish Network for AIDS Investigation (www.red.es/redes/inicio; RD16/0025/0040) as part of the Nacional I + D + I, ISCIII Subdirección General de Evaluación and the European Fund for Development of Regions. Juan Antonio Pineda received a research extension grant from the Programa de Intensificación de la Actividad de Investigación del Servicio Nacional de Salud Carlos III. Anaïs Corma-Gómez received a Río...

Resumen: Objetivo: Describir y analizar desde el punto de vista clínico y epidemiológico un brote de toxiinfección alimentaria en una institución de enfermos psiquiátricos de Granada, en 2015, y examinar si el tratamiento con psicofármacos constituye un factor de riesgo para desarrollar una toxiinfección alimentaria, analizando los grados de susceptibilidad según el grupo terapéutico consumido. Método: Estudio ambispectivo de cohortes. La unidad de análisis fueron los residentes. Se realizó búsqueda activa de casos, encuesta alimentaria y búsqueda de otros riesgos, e inspección alimentaria. Se estudiaron variables de persona, lugar y tiempo. Análisis descriptivo (frecuencias absolutas y relativas), cálculo de las tasas de ataque por pabellón y por menú. Análisis bivariado (ji al cuadrado, t de Student) y riesgo relativo como medida de la fuerza de asociación. Análisis multivariado mediante regresión logística para el análisis de riesgos de la medicación. Resultados: Se contabilizaron 18 casos con diarrea sin fiebre (periodo de incubación de 6-16 horas), de carácter leve y autolimitado. Las manifestaciones clínicas, la agrupación temporal de casos y las características de los alimentos ingeridos centraron la sospecha en una toxina bacteriana. A igualdad en el resto de variables, los grupos terapéuticos N03AF y N03AG confirieron mayor riesgo de enfermar (odds ratio [OR]: 8,626; intervalo de confianza del 95% [IC95%]: 2,050-36,308; p = 0,003; y OR: 14,516; IC95%: 3,155-66,784; p = 0,001, respectivamente). Conclusión: La disminución del tránsito intestinal causada por la administración de antiepilépticos puede aumentar el tiempo de exposición de la mucosa intestinal a la toxina, aumentando el riesgo de enfermar y de padecer complicaciones. Debe realizarse un esfuerzo higiénico suplementario en este tipo de instituciones para prevenir estas afecciones. Abstract: Objective: To describe and analyse from a clinical and epidemiological point of view, a food borne outbreak in a psychiatric institution in Granada, in 2015, and to examine whether treatment with psychoactive drugs constitutes a risk factor for the development of a food borne disease, analysing the degree of susceptibility according to the therapeutic group consumed. Method: Ambispective cohort study. Residents were the unit of analysis. Our group carried out an active case search and a food survey. A search for other risks was developed as well as a food inspection. Location, time and individual variables were studied. A descriptive analysis was conducted (absolute and relative frequencies). Calculation of attack rates by building and by menu was made. Bi-variant analysis (Chi-square test, t-Student test) and relative risk were used as a measure of strength of association. For risk analysis of medication, a multivariate analysis using logistic regression was carried out. Results: 18 cases with diarrhoea without fever were found (incubation period from 6 to 16 hours). Cases were mild and self-limiting. The clinical manifestations, the temporal grouping of cases and the characteristics of the ingested foods, focussed suspicion on a bacterial toxin. Being equal in the rest of variables, the N03AF, and N03AG therapeutic groups confer greater risk of disease (odds ratio [OR]: 8.626; 95% confidence interval [95%CI]: 2.050-36.308; p = 0.003; and OR: 14.516; 95%CI: 3.155-66.784; p = 0.001, respectively). Conclusion: Decreased intestinal transit, caused by the administration of anticonvulsants, may increase exposure time of the intestinal mucosa to the toxin, increasing the risk of disease and suffering from complications. An additional hygienic effort should be made in this type of institution to prevent these pathologies. Palabras clave: Toxiinfección alimentaria, Brote, Clostridium perfringens, Personas vulnerables, Antiepilépticos, Keywords: Food borne disease, Outbreak, Clostridium perfringens, Vulnerable people, Anticonvulsants