ABSTRACT
BACKGROUND: Individuals residing in institutionalized living facilities are currently a high-risk group as regards scabies outbreaks. This study is aimed at analyzing the characteristics of one of these outbreaks, which occurred at a senior citizen living facility located in the municipality of Barbastro (Huesca) through the Huesca Provincial Epidemiological Monitoring Division. METHODS: Following the initial notification of cases, a specific scabies prevention protocol was set out. An epidemiological investigation was conducted, proceeding to an active search for cases among all of the individuals residing or working at the facility in question. The information gathered on the cases and contacts by means of a validated survey was included in a database using Epiinfo 6.0. The attack rate and the relative risk of those residing in each area of the center were estimated, taking as a reference that having the lowest attack rate. RESULTS: A total of nineteen (18 and 1 respectively) cases of scabies were detected among the 104 residents and 20 workers employed at the facility. The source of the outbreak could not be specifically determined, although at least two of the first cases had begun to show some symptoms six months prior to their detection. The average delay in diagnosis was 53 days. This outbreak had a greater effect on the males in the assisted living quarters (TA = 77%; RR = 18.5, C195% = 2.7-128.7). The only employee affected was the person in charge of this area, who had not employed the universal personal protection measures during his caregiving tasks. CONCLUSIONS: This is a scabies outbreak at a senior citizen living facility, probably due to the delay in diagnosing the first cases and the failure on the part of one caregiver to have employed the personal protection measures. A specific scabies-prevention protocol having been implemented was fundamental for the control of this outbreak.
Subject(s)
Disease Outbreaks , Homes for the Aged , Scabies/epidemiology , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Spain/epidemiology , Surveys and QuestionnairesABSTRACT
Fundamento: La aparición de un número elevado de casos de brucelosis entre los trabajadores de un matadero en Zaragoza, en el que se sacrificaba ganado ovino procedente de las campañas de saneamiento ganadero, hizo iniciar una investigación para esclarecer el origen del brote. Métodos: El estudio se estructuró en tres partes: 1) Descripción del brote; 2) Estudio de la estructura y actividad del matadero en cuanto al número de animales sacrificados, carga de trabajo del personal y riesgo por zona de trabajo y 3) Estudio de casos y controles no apareado. Resultados: No hubo diferencias significativas entre las tasas de ataque por secciones de trabajo. El análisis del sacrificio reveló una variación concomitante entre las curvas de sacrificio de ovino de saneamiento y la epidémica. El estudio de casos y controles no reveló diferencias significativas para los siguientes factores de riesgo: trabajo en zona de riesgo, uso de medidas de protección y realización de cortes y heridas. Conclusiones: El brote está relacionado con el sacrificio de ovino de saneamiento. El que no se observaran diferencias significativas por secciones o por trabajar en la zona de riesgo es compatible con una exposición generalizada. Tampoco se observaron diferencias entre los trabajadores respecto a la realización de cortes y heridas o el uso de medidas de protección, lo que da importancia a la transmisión aérea (AU)
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