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Reconstrucción de la dinámica de transmisión completa del COVID-19 en Wuhan
Xingjie Hao1,2, Shanshan Cheng1,2, Degang Wu1,2
1Ministry of Education Key Laboratory of Environment and Health, State Key Laboratory of Environmental Health (Incubating), School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
Nature
|July 17, 2020
Resumen
La ciudad de Wuhan
Área de la Ciencia:
- Epidemiología
- Modelado de enfermedades infecciosas
Sus antecedentes:
- La enfermedad por coronavirus 2019 (COVID-19) surgió en Wuhan, China.
- Comprender la dinámica de transmisión del SARS-CoV-2 es crucial para el control de la pandemia.
Objetivo del estudio:
- Para reconstruir la dinámica de transmisión completa del COVID-19 en Wuhan.
- Evaluar el impacto de las intervenciones no farmacéuticas en la propagación del SARS-CoV-2.
Principales métodos:
- Modelado matemático de 32,583 casos confirmados de COVID-19 desde el 1 de enero hasta el 8 de marzo de 2020.
- Incorporación de datos de infecciosidad presintomática, determinación variable en el tiempo y movimiento de la población.
Principales resultados:
- Se estima que el 87% de las infecciones no fueron determinadas.
- Alta transmisibilidad: número básico de reproducción temprana (R0) de 3,54.
- Las intervenciones redujeron el R0 a 0,28, disminuyendo las infecciones en un 96%.
Conclusiones:
- El brote de COVID-19 en Wuhan se caracteriza por su alta clandestinidad y transmisibilidad.
- Las intervenciones no farmacéuticas fueron efectivas para controlar el brote.
- El riesgo significativo de reaparición debido a casos no determinados requiere una vigilancia continua.
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