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Análisis de los números de casos de SARS-CoV-2 y agrupación para predecir un brote en hogares de ancianos
Yasin Abul1,2,3, Kevin McConeghy4, Frank DeVone4
1Center of Innovation in Long Term Services and Supports, Providence VA Medical Center, Providence, RI, USA. yasin_abul@brown.edu.
Aging clinical and experimental research
|August 31, 2025
Resumen
Los primeros grupos de casos de COVID-19 en hogares de ancianos predicen fuertemente brotes más grandes. La detección y la intervención rápidas son cruciales para controlar la propagación del virus respiratorio en estos entornos vulnerables.
Área de la Ciencia:
- Epidemiología de las enfermedades infecciosas
- Cuidados geriátricos
- Vigilancia de la salud pública
Sus antecedentes:
- La pandemia de COVID-19 afectó gravemente a los hogares de ancianos, lo que requirió estrategias mejoradas para controlar los brotes de enfermedades infecciosas.
- La detección temprana y la intervención eficaces son fundamentales para mitigar la propagación de los virus respiratorios en las instalaciones de cuidados a largo plazo.
Objetivo del estudio:
- Para identificar los predictores tempranos de los brotes de SARS-CoV-2 (el virus que causa el COVID-19) en los hogares de ancianos.
- Analizar la asociación entre el recuento inicial de casos y las infecciones posteriores en un período de dos semanas.
Principales métodos:
- Análisis de los datos de vigilancia PCR dos veces por semana de 134 Centros de Vida Comunitaria de Asuntos de Veteranos (diciembre de 2021 a junio de 2022).
- Evaluación del recuento de casos a nivel de barrio y su correlación con las nuevas infecciones.
- Se incluyeron datos de 16.353 residentes, con 1.868 infecciones identificadas.
Principales resultados:
- Las unidades de hogares de ancianos sin casos iniciales tenían un 87.49% de probabilidades de permanecer libres de casos.
- Las unidades con cuatro o más casos iniciales tenían una probabilidad del 38,5% de experimentar cuatro o más casos adicionales.
- Los primeros grupos de casos fueron identificados como fuertes predictores de brotes posteriores más grandes.
Conclusiones:
- La presencia de grupos de casos tempranos es un indicador significativo de brotes más grandes inminentes en hogares de ancianos.
- Los hallazgos hacen hincapié en la importancia de las pruebas diagnósticas rápidas y la intervención inmediata para prevenir la transmisión generalizada.
- El estudio proporciona un marco para refinar las definiciones de brotes y mejorar las estrategias de control de infecciones para los virus respiratorios en entornos de atención a largo plazo.
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